Interpretation of Gravity by Entropy

1. Introduction

In this paper, we will explain in the following order.

1.1

First, we define generalized entropy $S_{D_{+}}(x,k)$ and partial entropy $S_{D_{+}}\left(x\right)$ partitioned by the partition function $D_{+}\left(x\right)$, and introduce acceleration of partial entropy $S_{D_{+}}^{\prime \prime }\left(x\right)$ and the positive function $Q_{D_{+}}\left(x\right)$ as satisfied $Q_{D_{+}}\left(x\right)=\xi x/D_{+}\left(x\right)$, where x is a positive variable and $\xi$ is a positive constant.

1.2

Second, by applying the idea of logistics function to that entropy, using the ideas of logistics function, we derive a function $Q_{D_{+}}\left(x\right)$ that defines the partition function $D_{+}\left(x\right)$. Moreover, we assume that generalized entropy $S_{D_{+}}(x,k)$ is approximated by second-degree polynomial, that is, the formula ${\lambda }_2{x}^2+{\lambda }_{1}x$. In other words, we assume that the second derivative of $S_{D_{+}}(x,k)$ is a constant ${\lambda }_2/2$.

1.3

Third, the inverse of partial entropy $S_{D_{+}}\left(x\right)$ is defined as potential $V_{D_{+}}(x,k)$, and the first derivative of potential $V_{D_{+}}(x,k)$ is defined as acceleration $V_{D_{+}}^{\prime }(x,k)$. Namely, it assume that potential and acceleration are derived from entropy.

1.4

Forth, for application to gravity theory, the inverse $1/{\lambda }_2$ is interpreted as mass m, the constant k is interpreted as gravitational constant G, and a variable x is interpreted as distance R, etc. Thereby, potential $V_{D_{+}}(x,k)$ and acceleration $V_{D_{+}}^{\prime }(x,k)$ are interpreted as gravitational potential $V_{D_{+}}(R,G)$ and gravitational acceleration ${\overline{g}}_{\pm }=-V_{D_{+}}^{\prime }(R,G)$. Therefore, we show and propose some conclusions :

• If distance R is small enough, gravity is a constant regardless of R, and may not go to infinity under certain conditions. It is possible that gravity have 5-states within distance R is small enough. Among 5-states, there is anti-force, which is the opposite of Newton’s gravity. Furthermore, within small distance, we show that the possibility that gravitational potential and Coulomb potential can be treated in the same way.
• At distance large enough to be within the size of the universe, gravity follows the adjusted inverse square law. Within this distance, the rotation speed of the galaxy v follows gravitational constant G, mass m and some constants, not depend on the galaxy radius R. (the galaxy rotation curve problem)
• At large distance, gravity follows an adjusted inverse square law. Comparing to conventional gravity g, adjusted gravitational acceleration ${\tilde{g}}^{\pm }$ towards the center of rotation becomes slightly weaker or stronger. This means that gravitational acceleration towards the center of a rotating substance can be slightly changed at distance. (Pioneer Anomaly)

The adjusted gravitational acceleration $V_{D_{+}}^{\prime }(R,G)$ can be viewed as an expansion of Newton’s gravity theory. Therefore, it is possible that there exists some constants which controls gravity and the speed of galaxies.

1.5

Fifth, it attempt to explain the relationship between Yukawa-type potential and negative partial entropy. Same as we introduce generalized entropy$(-)$$S_{D_{-}}(x,k)$ and potential $V_{D_{-}}(R,G)$. Besides, we define that strong proximity acceleration(forces) $g_{\pm }^{sp}$, expand electromagnetic force ${\overline{E}}_{\pm }$, weak proximity acceleration(forces) $g_{\pm }^{wp}$ and adjusted gravity ${\tilde{g}}_{\pm }$, and that compare the size of these forces. Moreover, the ratios of the size of 4-forces in nature (strong force, electromagnetic force, weak force and gravity) with strong force being 1 are represented as 1, $1E-2$, $1E-5$ and $1E-39$. By considering strong proximity acceleration $g_{\pm }^{sp}$ be regarded as strong force, weak proximity acceleration $g_{\pm }^{wp}$ as weak force, adjusted gravity ${\tilde{g}}_{\pm }$ as gravity and extended electromagnetic ${\overline{E}}_{\pm }$ as electromagnetic force. we attempt to explain the ratios of 4-forces in nature.

1.6

Finally, gravitational acceleration G and Coulomb’s constant $k_c$ would simply be some of the coefficients related to forces that humans can currently sense throughout the universe. It suggests that there may exists new forces, that mass m may represent by entropy and that gravitational constant G can fluctuate if entropy changes. Thermodynamics, quantum, gravity, electromagnetic and ecology may be unified through entropy.

2. Generalized Entropy and Application to Dynamical Systems

In this section, we introduce generalized entropy, its partial entropy and its acceleration entropy.

2.1. Generalized Entropy $S_{D_{+}}(x,k)$ and Generalized Partial Entropy $S_{D_{+}}\left(x\right)$

We define generalized entropy as follows. In this paper, the function log represents the natural logarithm ${log}_e$.

Definition 2.1. 

Generalized Entropy$(+)$$S_{D_{+}}(x,k)$ and generalized partial entropy $S_{D_{+}}\left(x\right)$.

Let $x>0$ be a real variable, and $k⪈0$ and $\xi ⪈0$ be real constants. Let $D_{+}\left(x\right)>0$ be a positive real valued function that partitioning x. $S_{D_{+}}(x,k)$, $S_{D_{+}}\left(x\right)$ and $Q_{D_{+}}\left(x\right)$ are defined as follows:

$$\begin{array}{ccc}& & S_{D_{+}}(x,k)=k{D}_{+}\left(x\right)S_{D_{+}}\left(x\right),\hfill \end{array}$$

(1)

$$\begin{array}{ccc}& & Q_{D_{+}}\left(x\right)={\displaystyle \frac{\xi x}{D_{+}\left(x\right)}},\hfill \end{array}$$

(2)

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill S_{D_{+}}\left(x\right)& =\left(1+{\displaystyle \frac{x}{D_{+}\left(x\right)}}\right)log\left(1+{\displaystyle \frac{x}{D_{+}\left(x\right)}}\right)-{\displaystyle \frac{x}{D_{+}\left(x\right)}}log\left({\displaystyle \frac{x}{D_{+}\left(x\right)}}\right),\hfill \\ & =\left(1+{\displaystyle \frac{Q_{D_{+}}\left(x\right)}{\xi }}\right)log\left(1+{\displaystyle \frac{Q_{D_{+}}\left(x\right)}{\xi }}\right)-{\displaystyle \frac{Q_{D_{+}}\left(x\right)}{\xi }}log\left({\displaystyle \frac{Q_{D_{+}}\left(x\right)}{\xi }}\right),\hfill \end{array}\hfill \end{array}$$

(3)

where for any positive variable $x>0$, the function $Q_{D_{+}}$ is satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& Q_{D_{+}}⪈0,Q_{D_{+}}^{\prime }⪈0.\hfill \end{array}\hfill \end{array}$$

(4)

□

On the above definition, $S_{D_{+}}^{\prime }\left(x\right)$ and $S_{D_{+}}^{\prime \prime }\left(x\right)$ are represented as follows :

$$\begin{array}{ccc}& & S_{D_{+}}^{\prime }\left(x\right)={\displaystyle \frac{Q_{D_{+}}^{\prime }\left(x\right)}{\xi }}\left(log(1+{\displaystyle \frac{Q_{D_{+}}\left(x\right)}{\xi }})-log\left({\displaystyle \frac{Q_{D_{+}}\left(x\right)}{\xi }}\right)\right)\hfill \end{array}$$

(5)

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill S_{D_{+}}^{\prime \prime }\left(x\right)& ={\displaystyle \frac{Q_{D_{+}}^{\prime }\left(x\right)}{\xi }}\left({\displaystyle \frac{Q_{D_{+}}^{\prime }\left(x\right)}{\xi +Q_{D_{+}}\left(x\right)}}-{\displaystyle \frac{Q_{D_{+}}^{\prime }\left(x\right)}{Q_{D_{+}}\left(x\right)}}\right)\hfill \\ & +{\displaystyle \frac{Q_{D_{+}}^{\prime \prime }\left(x\right)}{\xi }}\left(log(1+{\displaystyle \frac{Q_{D_{+}}\left(x\right)}{\xi }})-log\left({\displaystyle \frac{Q_{D_{+}}\left(x\right)}{\xi }}\right)\right).\hfill \end{array}\hfill \end{array}$$

(6)

We will call $S_{D_{+}}^{\prime }\left(x\right)$ entropy generation (velocity) of $S_{D_{+}}\left(x\right)$, and $S_{D_{+}}^{\prime \prime }\left(x\right)$ entropy acceleration of $S_{D_{+}}\left(x\right)$. The function $Q_{D_{+}}\left(x\right)$ can be regard as the position partitioned a real value $\xi x$ by $Q_{D_{+}}\left(x\right)$. The first order derivative of $Q_{D_{+}}\left(x\right)$, that is, $Q_{D_{+}}^{\prime }\left(x\right)$ can be regard as the change of the position by x and $\xi$. (Refer to Fujino [27] for details on how to derive generalized entropy, entropy acceleration and its partial entropy.)

2.2. The Function $Q_{D_{+}}\left(x\right)$ and Approximation of Generalized Entropy $S_{D_{+}}(x,k)$

Next, we find the function $Q_{D_{+}}\left(x\right)$ using the idea behind Planck’s radiation formula and logistic function. Put the part of partial entropy $S_{D_{+}}^{\prime \prime }\left(x\right)$ as follows :

$$\begin{array}{ccc}& & \begin{array}{c}\hfill {\displaystyle \frac{Q_{D_{+}}^{\prime }\left(x\right)}{\xi }}\left({\displaystyle \frac{1}{\xi +Q_{D_{+}}\left(x\right)}}-{\displaystyle \frac{1}{Q_{D_{+}}\left(x\right)}}\right)=-\mu \left(x\right),\end{array}\hfill \end{array}$$

(7)

where $\mu \left(x\right)>0$ is a positive real function. The left side of above equation (7) looks like spectra partitioned by $\xi x/Q_{D_{+}}\left(x\right)$ and the right side of (7) become an approximation by the function $\mu \left(x\right)$. We consider $Q_{D_{+}}^{\prime }\left(x\right)$ as follows:

$$\begin{array}{ccc}& & Q_{D_{+}}^{\prime }\left(x\right)={\displaystyle \frac{d{Q}_{D_{+}}}{dx}}.\hfill \end{array}$$

(8)

Transforming according to equation (8), we can represent as follows :

$$\begin{array}{ccc}& & d{Q}_{D_{+}}\left({\displaystyle \frac{1}{\xi +Q_{D_{+}}\left(x\right)}}-{\displaystyle \frac{1}{Q_{D_{+}}\left(x\right)}}\right)=-\xi \mu \left(x\right)dx.\hfill \end{array}$$

(9)

Integrating both sides gives as follows :

$$\begin{array}{ccc}& & log(\xi +Q_{D_{+}}\left(x\right))-log\left(Q_{D_{+}}\left(x\right)\right)=-\xi \int \mu \left(x\right)dx\pm {\mu }_1,\hfill \end{array}$$

(10)

where ${\mu }_1\ge 0$. Since the left side of the above equation is a positive number and $\xi >0$, ${\mu }_1>0$. Therefore, we consider only the case where the sign of ${\mu }_1$ is positive as follows :

$$\begin{array}{ccc}& & -\xi \int \mu \left(x\right)dx\pm {\mu }_1>0.\hfill \end{array}$$

(11)

Therefore, the following equation is satisfied :

$$\begin{array}{ccc}& & log(1+{\displaystyle \frac{\xi }{Q_{D_{+}}\left(x\right)}})=-\xi \int \mu \left(x\right)dx+{\mu }_1.\hfill \end{array}$$

(12)

By transforming the above equation, it is satisfied as follows :

$$\begin{array}{ccc}& & 1+{\displaystyle \frac{\xi }{Q_{D_{+}}\left(x\right)}}=exp(-\xi \int \mu \left(x\right)dx+{\mu }_1).\hfill \end{array}$$

(13)

Therefore, the function $Q_{D_{+}}\left(x\right)$ is represented as follows :

$$\begin{array}{ccc}& & Q_{D_{+}}\left(x\right)={\displaystyle \frac{\xi }{exp(-\xi {\displaystyle \int }\mu \left(x\right)dx+{\mu }_1)-1}}.\hfill \end{array}$$

(14)

The function $Q_{D_{+}}\left(x\right)$ becomes the distribution function of the position which the real value $\xi x$ partitioned by $Q_{D_{+}}\left(x\right)$. The equation (7) also looks like spectra partitioned by $\xi x/Q_{D_{+}}\left(x\right)$. If we actually take $Q_{D_{+}}\left(x\right)$ to $log\left(x\right)$, we obtain an equation similar to the expansion of Planck’s distribution formula. (Refer to Planck[1] and Fujino[27]) If we partition it further into squares of discrete integers, put $Q_{D_{+}}^{\prime }\left(x\right)=1$, $\mu \left(x\right)$ is represented the wave number, and $1/\xi$ is the Rydberg constant $Ry$, then it resembles the Rydberg formula that represents a spectral series. Namely, entropy may be related to atomic spectra and its energy levels. We would like to make this a topic of research in the future. Next, we make assumption about approximation of generalized entropy $S_{D_{+}}(x,k)$.

Assumption 2.2. 

Assume generalized entropy $S_{D_{+}}(x,k)$ can be approximated by a second-degree polynomial. Hence set as follows :

$$\begin{array}{ccc}& & S_{D_{+}}(x,k)={\lambda }_2{x}^2\pm {\lambda }_{1}x,\hfill \end{array}$$

(15)

where ${\lambda }_2⪈0$${\lambda }_1\ge 0$ are real numbers, and $S_{D_{+}}(0,k)=0$. □

Hence, the first derivative $S_{D_{+}}^{\prime }(x,k)$ is represented a first-degree polynomial as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& S_{D_{+}}^{\prime }(x,k)=2{\lambda }_{2}x\pm {\lambda }_1.\hfill \end{array}\hfill \end{array}$$

(16)

Besides, the second derivative $S_{D_{+}}^{\prime \prime }(x,k)$ is constant. Namely, it is satisfied as follows :

$$\begin{array}{ccc}& & S_{D_{+}}^{\prime \prime }(x,k)=2{\lambda }_2.\hfill \end{array}$$

(17)

In other words, we assume that the second derivative of $S_{D_{+}}(x,k)$ is a constant.

2.3. The Inverse of Partial Entropy $S_{D_{+}}\left(x\right)$ and Potential $V_{D_{+}}(x,k)$

Next, we focus on the inverse of partial entropy $S_{D_{+}}\left(x\right)$ as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& {\displaystyle \frac{1}{S_{D_{+}}\left(x\right)}}=k{\displaystyle \frac{\xi x}{Q_{D_{+}}\left(x\right)}}{\displaystyle \frac{1}{{\lambda }_2{x}^2\pm {\lambda }_{1}x}}.\hfill \end{array}\hfill \end{array}$$

(18)

By equation (14), we can represent as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& {\displaystyle \frac{1}{S_{D_{+}}\left(x\right)}}=k{\displaystyle \frac{1}{{\lambda }_{2}x\pm {\lambda }_1}}(exp(-\xi \int \mu \left(x\right)dx+{\mu }_1)-1).\hfill \end{array}\hfill \end{array}$$

(19)

We define the inverse of $S_{D_{+}}\left(x\right)$ as potential $V_{D_{+}}(x,k)$ :

$$\begin{array}{ccc}& & \begin{array}{cc}& V_{D_{+}}(x,k)=-k{\displaystyle \frac{\frac{1}{{\lambda }_2}}{x\pm \frac{{\lambda }_1}{{\lambda }_2}}}(1-exp(-\xi \int \mu \left(x\right)dx+{\mu }_1)).\hfill \end{array}\hfill \end{array}$$

(20)

In other words, the above potential $V_{D_{+}}(x,k)$ can be defined as the product of a constant k, the partition $D_{+}\left(x\right)=\xi /Q_{D_{+}}\left(x\right)$, and the inverse of the generalized entropy $D_{+}(x,k)$.

Here, let us reorganize the above, that is, we assume as follows :

$$\begin{array}{ccc}& & S_{D_{+}}(x,k)={\lambda }_2{x}^2\pm {\lambda }_{1}x,\hfill \end{array}$$

(21)

$$\begin{array}{ccc}& & \begin{array}{c}\hfill {\displaystyle \frac{Q_{D_{+}}^{\prime }\left(x\right)}{\xi }}\left({\displaystyle \frac{1}{\xi +Q_{D_{+}}\left(x\right)}}-{\displaystyle \frac{1}{Q_{D_{+}}\left(x\right)}}\right)=-\mu \left(x\right),\end{array}\hfill \end{array}$$

(22)

where ${\lambda }_2⪈0$ is positive real number and $\mu \left(x\right)⪈0$ is a positive real function. Therefore, we define the inverse of representation $S_{D_{+}}\left(x\right)$ as potential $V_{D_{+}}(x,k)$ :

$$\begin{array}{ccc}& & \begin{array}{cc}& V_{D_{+}}(x,k)=-k{\displaystyle \frac{\frac{1}{{\lambda }_2}}{x\pm \frac{{\lambda }_1}{{\lambda }_2}}}\left(1-exp(-\xi \int \mu \left(x\right)dx+{\mu }_1)\right),\hfill \end{array}\hfill \end{array}$$

(23)

where $\xi ⪈0$, ${\lambda }_2⪈0$, ${\lambda }_1\ge 0,{\mu }_1\ge 0$ are real numbers and $\mu \left(x\right)⪈0$ is a positive real function. The first derivative $V_{D_{+}}^{\prime }(x,k)$ is satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{+}}^{\prime }(x,k)& ={\displaystyle \frac{k\frac{1}{{\lambda }_2}}{{(x\pm \frac{{\lambda }_1}{{\lambda }_2})}^2}}\left(1-exp(-\xi \int \mu \left(x\right)dx+{\mu }_1)\right)-{\displaystyle \frac{k\frac{1}{{\lambda }_2}\xi \mu \left(x\right)}{x\pm \frac{{\lambda }_1}{{\lambda }_2}}}exp(-\xi \int \mu \left(x\right)dx+{\mu }_1).\hfill \end{array}\hfill \end{array}$$

(24)

Let $V_{D_{+}}(x,k)$ be named as potential of $S_{D_{+}}(x,k)$, and $V_{D_{+}}^{\prime }(x,k)$ be named as acceleration of $S_{D_{+}}(x,k)$. Namely, we assume as follows :

Assumption 2.3. 

It assume that potential $V_{D_{+}}(x,k)$ is defined the inverse of partial entropy $S_{D_{+}}\left(x\right)$. Therefore, acceleration $V_{D_{+}}^{\prime }(x,k)$ is defined the first derivative of $V_{D_{+}}(x,k)$. □

In the next chapter, we will describe applications of $V_{D_{+}}(x,k)$ and $V_{D_{+}}^{\prime }(x,k)$ to gravity.

3. Application of $V_{D_{+}}(x,k)$ to Gravity

The constants, variables, and functions in the above equations (23) and (110) can be chosen arbitrarily within the range of conditions. Therefore, we attempt to interpret these constants, variables and functions as gravity. Namely, we attempt to interpret $V_{D_{+}}(x,k)$ as gravitational potential and $V_{D_{+}}^{\prime }(x,k)$ as gravitational acceleration.

3.1. Interpretation to $V_{D_{+}}(R,G)$

We consider the interpretation of equation $V_{D_{+}}(x,k)$ as follows :

$$\begin{array}{ccc}& & \begin{array}{ccc}& x:=R\ge 0,\hfill & Risdistance,\\ & {\displaystyle \frac{1}{{\lambda }_2}}:=m⪈0,\hfill & mismasswithinR,\\ & k:=G,\hfill & Gisthegravitationalconstant,\\ & \xi :={\xi }^g,\hfill & {\xi }^{g}isaconstant,\\ & \mu \left(x\right):={\mu }_2^g⪈0,\hfill & {\mu }_2^{g}isapositiverealconstant,\\ & {\mu }_1:={\mu }_1^g\ge 0,\hfill & {\mu }_1^{g}isarealconstant,\\ & {\lambda }_1:={\lambda }_1^g\ge 0,\hfill & {\lambda }_1^{g}isarealconstant,\end{array}\hfill \end{array}$$

(25)

where the symbol g in the upper right corner of the alphabet means g of gravity.

We assume as follows : The direction with smaller R is defined as the central direction, that is, the direction towards the center is negative. Gravitational potential increases away from the center and decreases toward the center. However, when $R=0$ become $V_{D_{+}}(R,G)=0$. Moreover, it assume the constant $1/{\lambda }_2$ is equal to mass m within R.

Assumption 3.1. 

Assume the constant $1/{\lambda }_2$ is equal to mass m within R.

Assume that 2-times the inverse of entropy acceleration, $2/S_{D_{+}}^{\prime \prime }(x,k)$, that is, $1/{\lambda }_2$ is equal to the mass m within R. In other word, mass m within R is defined as the inverse of the second-order term of $S_{D_{+}}(x,k)$, that is $1/{\lambda }_2$. □

According assumption 3.1, if entropy acceleration $S_{D_{+}}^{\prime \prime }(x,k)$ is large, mass m becomes small, and if the entropy acceleration $S_{D_{+}}^{\prime \prime }(x,k)$ is small, mass m becomes large. Doesn’t this relationship between entropy acceleration and mass seem intuitive?

We define $V_{D_{+}}(R,G)$ as gravitational potential of G as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{+}}(R,G)& =-{\displaystyle \frac{Gm}{R\pm {\lambda }_1^{g}m}}(1-exp(-{\xi }^g{\mu }_2^g\int dR+{\mu }_1^g))\hfill \\ & =-{\displaystyle \frac{Gm}{R\pm {\lambda }_1^{g}m}}(1-exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g)),\hfill \end{array}\hfill \end{array}$$

(26)

The first derivative $V_{D_{+}}^{\prime }(R,G)$ is satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{+}}^{\prime }(R,G)=& {\displaystyle \frac{Gm}{{(R\pm {\lambda }_1^{g}m)}^2}}\left(1-exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g)\right)-{\displaystyle \frac{Gm{\xi }^g{\mu }_2^g}{R\pm {\lambda }_1^{g}m}}exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g),\hfill \end{array}\hfill \end{array}$$

(27)

where ${\xi }^g⪈0$, ${\mu }_2^g⪈0$, ${\mu }_1^g\ge 0$ and ${\lambda }_1^g\ge 0$.

Definition 3.2. 

Expanded Gravitational acceleration ${\overline{g}}_{\pm }=g(R,G)$.

Expanded Gravitational acceleration ${\overline{g}}_{\pm }=g(R,G)$ is defined as $-V_{D_{+}}^{\prime }(R,G)$. Namely, it is satisfied as follows :

$$\begin{array}{c}\hfill {\overline{g}}_{\pm }=g(R,G)=-V_{D_{+}}^{\prime }(R,G).\end{array}$$

(28)

□

The above equation (27) become gravitational acceleration. The first term in brackets of equation (26) becomes like Yukawa potential. (Refer to H.Yukawa[17], Y.Fujii[18],R.Feynman[2])

(Note): Let M be mass located in range R of mass m. Potential energies $U_{\pm }(R,G)$ of potentials $V_{D_{\pm }}(R,G)$ is represented as follows:

$$\begin{array}{ccc}& & U_{\pm }(R,G)=V_{D_{\pm }}(R,G)M,\hfill \end{array}$$

(29)

and forces $F_{\pm }(R,G)$ of accelerations $V_{D_{\pm }}^{\prime }(R,G)$ is represented as follows:

$$\begin{array}{ccc}& & F_{+}(R,G)={\overline{g}}_{\pm }M=-V_{D_{+}}^{\prime }(R,G)M,\hfill \end{array}$$

(30)

$$\begin{array}{ccc}& & F_{-}(R,G)={\widehat{g}}_{\pm }M=-V_{D_{-}}^{\prime }(R,G)M.\hfill \end{array}$$

(31)

Therefore it treat force as acceleration in the same way. The gravitational acceleration ${\widehat{g}}_{\pm }$ is define later on Section 4.4. (End of Note)

The solution of equation (27) for ${\mu }_1^g$ is satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill {\mu }_1^g=& log\left({\displaystyle \frac{1}{1+(R\pm {\lambda }_1^{g}m){\xi }^g{\mu }_2^g}}\right)+{\xi }^g{\mu }_2^{g}R,{\mu }_1^g\ge 0.\hfill \end{array}\hfill \end{array}$$

(32)

Since the following conditions are needed to satisfied :

$$\begin{array}{ccc}& & \begin{array}{cc}& exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g)={\displaystyle \frac{1}{1+(R\pm {\lambda }_1^{g}m){\xi }^g{\mu }_2^g}}\ge 0,\hfill \end{array}\hfill \end{array}$$

(33)

hence, it is satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& 1+(R\pm {\lambda }_1^{g}m){\xi }^g{\mu }_2^g\ge 0.\hfill \end{array}\hfill \end{array}$$

(34)

Therefore, we propose as follows:

Suggestion 3.3. 

The classified $V_{D_{+}}^{\prime }(R,G)$.

According to values of ${\xi }^g⪈0,{\mu }_2^g⪈0$${\lambda }_1^g\ge 0$ and ${\mu }_1^g\ge 0$, the equation $\left(\right)$ can be classified as follows:

Case 1)

If the constant ${\mu }_1^g$ is satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& {\mu }_1^g>log\left({\displaystyle \frac{1}{1+(R\pm {\lambda }_1^{g}m){\xi }^g{\mu }_2^g}}\right)+{\xi }^g{\mu }_2^{g}R,\hfill \end{array}\hfill \end{array}$$

(35)

(Note):On this case, the above right side may become positive or negative.(End of Note)

then the above equation (27) become negative, that is, it is satisfied as follows :

$$\begin{array}{ccc}& & V_{D_{+}}^{\prime }(R,G)<0.\hfill \end{array}$$

(36)

Case 2)

If the constant ${\mu }_1^g$ is satisfied as follows :

$$\begin{array}{ccc}& & {\mu }_1^g<log\left({\displaystyle \frac{1}{1+(R\pm {\lambda }_1^{g}m){\xi }^g{\mu }_2^g}}\right)+{\xi }^g{\mu }_2^{g}R,\hfill \end{array}$$

(37)

then the above equation (27) become positive, that is, it is satisfied as follows :

$$\begin{array}{ccc}& & V_{D_{+}}^{\prime }(R,G)\ge 0.\hfill \end{array}$$

(38)

Case 3)

If the constant ${\mu }_1^g\to 0$, then the following equation is satisfied :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{+}}^{\prime }(R,G)=& {\displaystyle \frac{Gm}{{(R\pm {\lambda }_1^{g}m)}^2}}\left(1-exp(-{\xi }^g{\mu }_2^{g}R)\right)-{\displaystyle \frac{Gm{\xi }^g{\mu }_2^g}{R\pm {\lambda }_1^{g}m}}exp(-{\xi }^g{\mu }_2^{g}R).\hfill \end{array}\hfill \end{array}$$

(39)

□

3.2. When Distance R Is Small Enough

If distance R is small enough, that is, since distance R approaches 0, hence the value of $exp(-{\xi }^g{\mu }_2^{g}R)$ approaches 1 infinitely. Therefore, the equation (27) is satisfied as follows:

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{+}}^{\prime }(R,G)& \simeq {\displaystyle \frac{G}{{(\pm {\lambda }_1^g)}^{2}m}}(1-exp\left({\mu }_1^g\right))-{\displaystyle \frac{G{\xi }^g{\mu }_2^g}{\pm {\lambda }_1^g}}exp\left({\mu }_1^g\right),\hfill \\ & (\because R\to 0,exp(-{\xi }^g{\mu }_2^{g}R)\to 1).\hfill \end{array}\hfill \end{array}$$

(40)

If distance $R\ne 0$ and ${\lambda }_1^g=0$, then it is satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{+}}^{\prime }(R,G)& ={\displaystyle \frac{Gm}{R^2}}(1-exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g))-{\displaystyle \frac{Gm{\xi }^g{\mu }_2^g}{R}}exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g).\hfill \end{array}\hfill \end{array}$$

(41)

The case of the above equation (41), if $R\to 0$, then it become $V_{D_{+}}^{\prime }(R,G)\to \infty$. Hence, we consider that it make ${\lambda }_1^g\ne 0$ and R is small enough, and later consider the case ${\lambda }_1^g=0$.

Therefore, if distance R is small enough, then acceleration $V_{D_{+}}^{\prime }(R,G)$ is approximated by a uniform value. Namely, the following representation is satisfied :

Suggestion 3.4. 

Acceleration $V_{D_{+}}^{\prime }(R,G)$ becomes a constant with small enough R.

Let m be a positive real number (mass). For sufficiently small distance $R>0$, the following equation is satisfied : acceleration $V_{D_{+}}^{\prime }(R,G)$ becomes a constant.

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{+}}^{\prime }(R,G)& \simeq {\displaystyle \frac{G}{{(\pm {\lambda }_1^g)}^{2}m}}(1-exp\left({\mu }_1^g\right))-{\displaystyle \frac{G{\xi }^g{\mu }_2^g}{\pm {\lambda }_1^g}}exp\left({\mu }_1^g\right),\hfill \end{array}\hfill \end{array}$$

(42)

where ${\xi }^g⪈0,{\mu }_2^g⪈0$, ${\lambda }_1^g\ge 0$ and ${\mu }_1^g\ge 0$. □

The solution of equation (42) for ${\mu }_1^g$ is satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& {\mu }_1^g=log\left({\displaystyle \frac{1}{1\pm {\lambda }_1^g{\mu }_2^g{\xi }^{g}m}}\right),{\mu }_1^g\ge 0.\hfill \end{array}\hfill \end{array}$$

(43)

Since the following conditions are needed to satisfied :

$$\begin{array}{ccc}& & \begin{array}{cc}& exp\left({\mu }_1^g\right)={\displaystyle \frac{1}{1\pm {\lambda }_1^g{\mu }_2^g{\xi }^{g}m}}\ge 0,\hfill \end{array}\hfill \end{array}$$

(44)

Because ${\xi }^g⪈0,{\mu }_2^g⪈0$, $m⪈0$ and ${\lambda }_1^g\ge 0$, it is satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& 1\pm {\lambda }_1^g{\mu }_2^g{\xi }^{g}m>0.\hfill \end{array}\hfill \end{array}$$

(45)

Therefore, it satisfied as follows :

$$\begin{array}{ccc}& & m<{\displaystyle \frac{1}{{\lambda }_1^g{\mu }_2^g{\xi }^g}}or{\displaystyle \frac{-1}{{\lambda }_1^g{\mu }_2^g{\xi }^g}}<m.\hfill \end{array}$$

(46)

According to the sign minus of ${\lambda }_1^g$ and the sign plus of ${\mu }_1^g$, the value of equation (42) and its solution for ${\mu }_1^g$ can be classified on finite as follows :

• if $V_{D_{+}}^{\prime }(R,G)\ne 0$ :

  $$\begin{array}{ccc}& & \begin{array}{cc}& V_{D_{+}}^{\prime }(R,G)\simeq {\displaystyle \frac{G}{{\left({\lambda }_1^g\right)}^{2}m}}(1-exp(\pm {\mu }_1^g))-{\displaystyle \frac{G{\xi }^g{\mu }_2^g}{\pm {\lambda }_1^g}}exp(\pm {\mu }_1^g),\hfill \end{array}\hfill \end{array}$$

  (47)
• if $V_{D_{+}}^{\prime }(R,G)\ne 0$ and ${\mu }_1^g\to 0$ :

  $$\begin{array}{ccc}& & \begin{array}{cc}& V_{D_{+}}^{\prime }(R,G)\simeq -{\displaystyle \frac{G{\xi }^g{\mu }_2^g}{\pm {\lambda }_1^g}},(\because exp(\pm {\mu }_1^g)\to 1),\hfill \end{array}\hfill \end{array}$$

  (48)
• if ${\mu }_1^g=log\left({\displaystyle \frac{1}{1\pm {\lambda }_1^g{\mu }_2^g{\xi }^{g}m}}\right)$ :

  $$\begin{array}{ccc}& & \begin{array}{cc}& V_{D_{+}}^{\prime }(R,G)=0.\hfill \end{array}\hfill \end{array}$$

  (49)

Therefore, we propose as follows :

Suggestion 3.5. 

The classified $V_{D_{+}}^{\prime }(R,G)$ with small enough R.

According to values of ${\xi }^g⪈0,{\mu }_2^g⪈0$${\lambda }_1^g\ge 0$ and ${\mu }_1^g\ge 0$, the equation $\left(\right)$ can be classified as follows:

Case 1)

If the constant ${\mu }_1^g$ is satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& {\mu }_1^g>log\left({\displaystyle \frac{1}{1\pm {\lambda }_1^g{\mu }_2^g{\xi }^{g}m}}\right),\hfill \end{array}\hfill \end{array}$$

(50)

(Note) : On this case, the above right side can become positive and negative. (End of Note)

then the above equation (42) become negative, that is, it is satisfied as follows :

$$\begin{array}{ccc}& & V_{D_{+}}^{\prime }(R,G)<0.\hfill \end{array}$$

(51)

Case 2)

If the constant ${\mu }_1^g$ is satisfied as follows :

$$\begin{array}{ccc}& & {\mu }_1^g\le log\left({\displaystyle \frac{1}{1\pm {\lambda }_1^g{\mu }_2^g{\xi }^{g}m}}\right),\hfill \end{array}$$

(52)

then the above equation (42) become positive, that is, it is satisfied as follows :

$$\begin{array}{ccc}& & V_{D_{+}}^{\prime }(R,G)\ge 0.\hfill \end{array}$$

(53)

(Note) : As we will see on Section 4.6 later, it take ${\lambda }_1^g$ to be very small and ${\mu }_2^g$ to be very large. (End of Note)

Case 3)

If the constant ${\mu }_1^g\to 0$, then the following representation is satisfied :

$$\begin{array}{ccc}& & V_{D_{+}}^{\prime }(R,G)\simeq -{\displaystyle \frac{G{\xi }^g{\mu }_2^g}{\pm {\lambda }_1^g}},(\because exp\left({\mu }_1^g\right)\to 1).\hfill \end{array}$$

(54)

□

3.2.1. Summarize Gravitational Acceleration for Small Enough R

We summarize as gravitational acceleration ${\overline{g}}_{\pm }=-V_{D_{+}}^{\prime }(R,G)$, where according to the plus or minus rule for values ${\lambda }_1^g$ and ${\mu }_1^g$, set ${\overline{g}}_{\pm {\lambda }_1^g\pm {\mu }_1^g}$ as ${\overline{g}}_{\pm }$.

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill {\overline{g}}_{\pm {\lambda }_1^g+{\mu }_1^g}& =-{\displaystyle \frac{Gm}{{(R\pm {\lambda }_1^{g}m)}^2}}(1-exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g))+{\displaystyle \frac{Gm\xi {\mu }_2^g}{R\pm {\lambda }_1^{g}m}}exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g),\hfill \\ & AdjustedGravitationalAccelerationwith{\xi }^{g}and{\mu }_2^g,\hfill \end{array}\hfill \end{array}$$

(55)

If the constant ${\lambda }_1^g=0$, then

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill {\overline{g}}_{\pm 0+{\mu }_1^g}& =-{\displaystyle \frac{Gm}{R^2}}(1-exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g))+{\displaystyle \frac{Gm{\xi }^g{\mu }_2^g}{R}}exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g),\hfill \\ & AdjustedGravitationalAccelerationwith{\xi }^g{\mu }_2^{g}and{\lambda }_1^g=0,\hfill \end{array}\hfill \end{array}$$

(56)

If distance $R\to 0$, then

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill & {\overline{g}}_{\pm {\lambda }_1^g+{\mu }_1^g}=-{\displaystyle \frac{G}{{(\pm {\lambda }_1^g)}^{2}m}}(exp\left({\mu }_1^g\right))+{\displaystyle \frac{G{\xi }^g{\mu }_2^g}{\pm {\lambda }_1^g}}exp\left({\mu }_1^g\right),\hfill \\ & AdjustedGravitationalAccelerationwith{\xi }^{g}andR\to 0.\hfill \end{array}\hfill \end{array}$$

(57)

Therefore, if distance $R\to 0$, then it is satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill & {\overline{g}}_{\pm {\lambda }_1^g+{\mu }_1^g}=\underset{R\to 0}{lim}{\overline{g}}_{{\lambda }_1^g+{\mu }_1^g\pm },\hfill \\ & \underset{{\mu }_1^g\to 0}{lim}{\overline{g}}_{\pm {\lambda }_1^g+{\mu }_1^g}={\displaystyle \frac{G{\xi }^g{\mu }_2^g}{\pm {\lambda }_1^g}},\hfill \\ & \underset{{\mu }_1^g\to 0,{\lambda }_1^g\to 0}{lim}{\overline{g}}_{\pm {\lambda }_1^g+{\mu }_1^g}=\pm \infty ,\hfill \\ & \underset{{\mu }_1^g\to 0,{\lambda }_1^g\to \infty }{lim}{\overline{g}}_{\pm {\lambda }_1^g+{\mu }_1^g}=0,\hfill \\ & \underset{{\mu }_1^g\to \infty }{lim}{\overline{g}}_{+{\lambda }_1^g+{\mu }_1^g}=\infty ,\because )\pm {\displaystyle \frac{-1}{{\lambda }_1^{g}m}}+{\mu }_2^g{\xi }^g>0,\hfill \\ & \underset{{\mu }_1^g\to \infty }{lim}{\overline{g}}_{-{\lambda }_1^g+{\mu }_1^g}=-\infty \because )\pm {\displaystyle \frac{-1}{{\lambda }_1^{g}m}}+{\mu }_2^g{\xi }^g<0.\hfill \end{array}\hfill \end{array}$$

(58)

From the above, we can suppose as follows :

Suggestion 3.6. 

Within distance R is small enough, gravity have 5-states.

Within distance R is small enough, it is possible that gravity $\overline{g}$ have 5-states such that finite 2-states ${\displaystyle \frac{G{\xi }^g{\mu }_2^g}{\pm {\lambda }_1^g}}$, and that infinite 2-states $\pm \infty$ and 1-state of 0. □

The values of $-G{\xi }^g{\mu }_2^g/{\lambda }_1^g$ and ${\overline{g}}_{\pm }=-V_{D_{+}}^{\prime }(R,G)<0$ has the same direction as Newton’s gravity, where the direction towards the center is negative. However, the value of $G{\xi }^g{\mu }_2^g/{\lambda }_1^g$ and ${\overline{g}}_{\pm }=-V_{D_{+}}^{\prime }(R,G)>0$ has the opposite direction. This mean that could this possibly represent the existence of anti-gravity?

If distance R is small enough, hence the acceleration $V_{D_{+}}^{\prime }(R,G)$ becomes some finite constants depend on constants ${\xi }^g,{\lambda }_1^g,{\mu }_1^g$ and ${\mu }_2^g$, not infinite. However, if the constant ${\lambda }_1^g$ or ${\mu }_1^g$ approach 0 or ∞, then the acceleration $V_{D_{+}}^{\prime }(R,G)$ becomes ∞ or 0. Depending on the value of ${\mu }_1$ and ${\lambda }_1^g$, the value of $V_{D_{+}}^{\prime }(R,G)$ can be positive or negative. When the value of $V_{D_{+}}^{\prime }(R,G)$ is the negative, the deceleration acts toward the center. These constants is depended on generalized entropy and the part of partial entropy. Namely, acceleration depend on generalized entropy. Therefore, there exists 5-states within distance R is small. The constant ${\lambda }_1^g$ is the coefficients of approximated generalized entropy ${\lambda }_2^g{x}^2+{\lambda }_1^{g}x$, and a constant ${\mu }_1^g$ is an integral constant obtained by integrating the parts of partial entropy $S_{D_{+}}^{\prime \prime }\left(x\right)$. In other word, acceleration moving away from the center is changed by these constant, that is, simply acceleration is depended on entropy. (Note : The center direction is defined as the positive direction.) The above description can be applied to Coulomb’s law (electric field) . By adjusting the value of ${\mu }_1$, ${\mu }_2$, ${\lambda }_1$, $m=1/{\lambda }_2$ and $\xi$, it may be possible to make the argument by replacing gravitational constant G to the Coulomb’s constant $k_c$. (In this paper, Coulomb’s constant is defined as $k_c$) We will describe this possibility next.

3.2.2. Compare $V_{D_{+}}(R,G)$ and $V_{D_{+}}(R,k_c)$ for Small R

We attempt to compare $V_{D_{+}}(R,G)$ and $V_{D_{+}}(R,k_c)$. Similarly gravitational potential $V_{D_{+}}(R,G)$, we define Coulomb potential $V_{D_{+}}(R,k_c)$ as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& V_{D_{+}}(R,k_c)=-{\displaystyle \frac{k_c{e}_q}{R\pm {\lambda }_1^c{e}_q}}(1-exp(-{\xi }^c{\mu }_2^{c}R+{\mu }_1^c)),\hfill \end{array}\hfill \end{array}$$

(59)

where $e_q>0$ is an elementary charge, and ${\xi }^c⪈0$, ${\mu }_2^c⪈0$, ${\mu }_1^c\ge 0$ and ${\lambda }_1^c\ge 0$, and the symbol c in the upper right corner of the alphabet means c of Coulomb.

For example, we set the value of constants as follows :

$$\begin{array}{ccc}& & \begin{array}{ccc}& G:=6.674E-11,\hfill & Gisthegravitationalconstant,\\ & {\xi }^g={\xi }^c:=h=6.626E-34,\hfill & hisPlanc{k}^{\prime }sconstant,\\ & k_c:=8.987E+9,\hfill & k_{c}isCoulom{b}^{\prime }sconstant,\\ & e_q:=1.604E-19,\hfill & e_{q}iselementarycharge,\\ & m:=m_p=2.176E-8,\hfill & m_{p}isPlanckmass(unit:kg),\\ & {\mu }_2^g:=1,\hfill & {\mu }_2^{g}isarealconstant,\\ & {\mu }_2^c:=1,\hfill & {\mu }_2^{c}isarealconstant,\\ & {\lambda }_1^g:=1,\hfill & {\lambda }_1^{g}isarealconstant,\\ & {\lambda }_1^c:=1,\hfill & {\lambda }_1^{c}isarealconstant,\end{array}\hfill \end{array}$$

(60)

Using the above constants, gravitational potential $V_{D_{+}}(R,G)$ is satisfied as follows :

$$\begin{array}{ccc}& & V_{D_{+}}(R,G)=2.442E-12,if{\mu }_1^g=1,\hfill \end{array}$$

(61)

$$\begin{array}{ccc}& & V_{D_{+}}(R,G)=2.480E-3,if{\mu }_1^g=21.28,\hfill \end{array}$$

(62)

where $R:=1.000E-6$ meter and Planck mass $m_p$ is used instead of mass m. The sign of ${\mu }_1^g$ and ${\lambda }_1^g$ are $+{\mu }_1^g$ and $+{\lambda }_1^g$. Similarly, Coulomb potential $V_{D_{+}}(R,k_c)$ is satisfied as follows :

$$\begin{array}{ccc}& & V_{D_{+}}(R,k_c)=2.474E-3,if{\mu }_1^c=1,\hfill \end{array}$$

(63)

$$\begin{array}{ccc}& & V_{D_{+}}(R,k_c)=2.512E+6,if{\mu }_1^c=21.28,\hfill \end{array}$$

(64)

where $R:=1.000E-6$ meter, elementary charge $e_q$ is used instead of mass m and used $k_c$ instead of G. The sign of ${\mu }_1^c$ and ${\lambda }_1^c$ are $+{\mu }_1^c$ and $+{\lambda }_1^c$. The value of $V_{D_{+}}(R,G)$ and $V_{D_{+}}(R,k_c)$ changes depending on how the constants ${\mu }_1^g$ and $\mu 1^c$ are selected. The above values $\left(\right)$ and $\left(\right)$ is closed. Therefore, for small distance R, ${\mu }_1^g=21.28$ and ${\mu }_1^c=1$, it is satisfied $V_{D_{+}}(R,G)\simeq V_{D_{+}}(R,k_c)$. In consequence, it is satisfied as follows :

Suggestion 3.7. 

Let $m_p$ be Planck mass, $e_q$ be elementary charge, G be gravitational constant and $k_c$ be Coulomb’s constant. For small distance $R>0$, there exists constants ${\xi }^g,{\xi }^c$, ${\mu }_2^g$, ${\mu }_2^c$, ${\mu }_1^g$, ${\mu }_1^c$, ${\lambda }_1^g$ and ${\lambda }_1^c$ such that the following equation is satisfied :

$$\begin{array}{ccc}& & \begin{array}{c}\hfill V_{D_{+}}(R,G)\simeq V_{D_{+}}(R,k_c),\end{array}\hfill \end{array}$$

(65)

where ${\xi }^g,{\xi }^c,{\mu }_2^g,{\mu }_2^c⪈0$ and ${\lambda }_1^g,{\lambda }_1^c,{\mu }_1^g,{\mu }_1^c\ge 0$. □

Because, if it is satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{+}}(R,G)& =-{\displaystyle \frac{G{m}_p}{R\pm {\lambda }_1^g{m}_p}}(1-exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g))\hfill \\ & =-{\displaystyle \frac{k_c{e}_q}{R\pm {\lambda }_1^c{e}_q}}(1-exp(-{\xi }^c{\mu }_2^{c}R+{\mu }_1^c))\hfill \\ & =V_{D_{+}}(R,k_c),\hfill \end{array}\hfill \end{array}$$

(66)

then transforming the above equation, it becomes as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g)=1+{\displaystyle \frac{R\pm {\lambda }_1^g{m}_p}{G{m}_p}}{\displaystyle \frac{k_c{e}_q}{R\pm {\lambda }_1^c{e}_q}}(exp(-{\xi }^c{\mu }_2^{c}R+{\mu }_1^c)-1).\hfill \end{array}\hfill \end{array}$$

(67)

Therefore, if the value of ${\mu }_2^c$ is given, the value of ${\mu }_2^g$ can be found as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& {\mu }_2^g={\displaystyle \frac{1}{{\xi }^{g}R}}\left[{\mu }_1^g-log\left(1+\left({\displaystyle \frac{R\pm {\lambda }_1^g{m}_p}{R\pm {\lambda }_1^c{e}_q}}\right)\left({\displaystyle \frac{k_c{e}_q}{G{m}_p}}\right)(exp(-{\xi }^c{\mu }_2^{c}R+{\mu }_1^c)-1)\right)\right].\hfill \end{array}\hfill \end{array}$$

(68)

Namely, using the equation for potential derived from entropy, within small distance, it may be possible to treat gravitational potential and Coulomb potential in the same way by appropriately choosing some constants. In same way, applying gravitational acceleration $V_{D_{+}}^{\prime }(R,G)$ and Coulomb’s law (electric field) $V_{D_{+}}^{\prime }(R,k_c)$, we can obtain a suggestion as follows :

Suggestion 3.8. 

Let $m_p$ be Planck mass , $e_q$ be elementary charge, G be gravitational constant and $k_c$ be Coulomb’s constant. For small distance $R>0$, there exists constants ${\xi }^g,{\xi }^c$, ${\mu }_2^g$${\mu }_2^c$, ${\mu }_1^g$${\mu }_1^c$${\lambda }_1^g$ and ${\lambda }_1^c$ such that the following equation is satisfied :

$$\begin{array}{ccc}& & \begin{array}{c}\hfill V_{D_{+}}^{\prime }(R,G)\simeq V_{D_{+}}^{\prime }(R,k_c),\end{array}\hfill \end{array}$$

(69)

where ${\xi }^g,{\xi }^c,{\mu }_2^g,{\mu }_2^c⪈0$ and ${\lambda }_1^g,{\lambda }_1^c,{\mu }_1^g,{\mu }_1^c\ge 0$. □

3.3. When Distance R Is Large, However $\xi$ Is Small Enough

Assuming distance R is large and the constant ${\xi }^g$ is small like Planck constant, that is ${\xi }^g\sim h$. The constant h is Planck constant, $6.626E-34J·s$ and the constant ${\mu }_2^g=1$. Assume that R is the radius of the universe within 46.5 billion light years $(4.65E+10)$. Since one light years is approximately $9.461E+15$ meter, we assume that the radius of the universe $R\simeq 4.399E+26$ meter. Therefore, the following condition is satisfied:

$$\begin{array}{ccc}& & \begin{array}{c}\hfill {\xi }^g{\mu }_2^{g}R\simeq 2.915E-7\ll 1.\end{array}\hfill \end{array}$$

(70)

We consider that the function $exp(-{\xi }^g{\mu }_2^{g}R)$ is approximately equal to 1, that is, it satisfied

$$\begin{array}{ccc}& & \begin{array}{cc}& exp(-{\xi }^g{\mu }_2^{g}R)\simeq 1.\hfill \end{array}\hfill \end{array}$$

(71)

Therefore, the following representations are satisfied :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill {\overline{g}}_{\pm }& =-{\displaystyle \frac{Gm}{{(R\pm {\lambda }_1^{g}m)}^2}}(1-exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g))+{\displaystyle \frac{Gm{\xi }^g{\mu }_2^g}{(R\pm {\lambda }_1^{g}m)}}exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g)\hfill \\ & \simeq -{\displaystyle \frac{Gm}{{(R\pm {\lambda }_1^{g}m)}^2}}(1-exp\left({\mu }_1^g\right))+{\displaystyle \frac{Gm{\xi }^g{\mu }_2^g}{(R\pm {\lambda }_1^{g}m)}}exp\left({\mu }_1^g\right),\hfill \\ & (\because exp(-{\xi }^g{\mu }_2^{g}R)\simeq 1).\hfill \end{array}\hfill \end{array}$$

(72)

When the condition ${\xi }^g{\mu }_2^{g}R\ll 1$ is satisfied, applying to mass M in circular orbit around mass m, the following equation is satisfied :

$$\begin{array}{ccc}& & \begin{array}{cc}& -{\displaystyle \frac{GmM}{{(R\pm {\lambda }_1^{g}m)}^2}}(1-exp\left({\mu }_1^g\right))+{\displaystyle \frac{GmM{\xi }^g{\mu }_2^g}{(R\pm {\lambda }_1^{g}m)}}exp\left({\mu }_1^g\right)=M{\displaystyle \frac{v^2}{R}}.\hfill \end{array}\hfill \end{array}$$

(73)

where m is mass within radius R and v is the rotation speed of mass M on radius R. The right side of equation (73) become centrifugal acceleration of mass M. Hence the following representations satisfied :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill v& =\sqrt{{\displaystyle \frac{-GmR}{{(R\pm {\lambda }_1^{g}m)}^2}}(1-exp\left({\mu }_1^g\right))+{\displaystyle \frac{Gm{\xi }^g{\mu }_2^g}{(1\pm \frac{{\lambda }_1^{g}m}{R})}}exp\left({\mu }_1^g\right)}\hfill \\ & =\sqrt{{\displaystyle \frac{-Gm}{(R\pm {\lambda }_1^{g}m)(1\pm \frac{{\lambda }_1^{g}m}{R})}}(1-exp\left({\mu }_1^g\right))+{\displaystyle \frac{Gm{\xi }^g{\mu }_2^g}{(1\pm \frac{{\lambda }_1^{g}m}{R})}}exp\left({\mu }_1^g\right)}\hfill \\ & \simeq \sqrt{Gm{\xi }^g{\mu }_2^{g}exp\left({\mu }_1^g\right)},\hfill \\ & (\because Rislargeenoughand(1+{\displaystyle \frac{{\lambda }_1^{g}m}{R}})\to 1).\hfill \end{array}\hfill \end{array}$$

(74)

Similar results are obtained for ${\widehat{g}}_{-}$ of Yukawa-type gravity acceleration discussed later on Section 4.4. Therefore, we propose that the following is satisfied :

Suggestion 3.9. 

Let $m>0$ (mass) and v (the speed of rotation) be positive real numbers. For large distance $R>0$ within $4.399E+26$, the following condition is satisfied :

$$\begin{array}{ccc}& & \begin{array}{cc}& v\simeq \sqrt{Gm{\xi }^g{\mu }_2^{g}exp\left({\mu }_1^g\right)},\hfill \end{array}\hfill \end{array}$$

(75)

where ${\xi }^g,{\mu }_2^g⪈0$ and ${\lambda }_1^g,{\mu }_1^g\ge 0$. As a results, the speed of rotation v at radius R is approximated by a uniform value $\sqrt{Gm{\xi }^g{\mu }_2^{g}exp\left({\mu }_1^g\right)}$, not depend on radius R. □

Therefore, the speed of rotation v is depended on constants G, m, ${\xi }^g$, ${\mu }_1^g$ and ${\mu }_2^g$, not depend on radius R. It is noticed that these constants is decided by generalized entropy $S_{D_{+}}(x,k)$ and the distribution function $Q_{D_{+}}\left(x\right)$. According the suggestion 3.9, let m be equal to mass of the Milky Way Galaxy, that is, $m\simeq 1.989E+30\times 2.0E+12$ kg, where mass of the sun is $1.989E+30$ and the sun count in the Milky Way Galaxy is $2.0E+12$. Therefore, if setting $\xi =1E-34\sim h$ (Planck constant) and ${\mu }_2^g=1$, then the speed of rotation is satisfied depending the constant ${\mu }_1^g$ as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& v\simeq 4.194E-1\sqrt{exp\left({\mu }_1^g\right)}m/s.\hfill \end{array}\hfill \end{array}$$

(76)

For example, let ${\mu }_1^g=26.36$, the speed of rotation v became as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& v\simeq 2.222E+5m/s.\hfill \end{array}\hfill \end{array}$$

(77)

In this case, the speed of (77) is close to the rotation speed of the Milky Way Galaxy, that is, approximately $2.200E+5\sim 2.400E+5$ m/s. Even without assuming dark matter, the galaxy rotation problem may be explained by the concept of entropy. This does not mean denying dark matter. New constants ${\mu }_1^g$ and ${\mu }_2^g$ may represent some kind of virtual mass. Besides, the suggestion 3.9 may consider to apply to velocities over short distances, such as electrons in atomic nuclei.

3.4. When Distance R Is Large Enough

If distance R is large enough, the equation (27) is satisfied as follows:

$$\begin{array}{ccc}& & \begin{array}{cc}& {\tilde{g}}_{\pm }=-V_{D_{+}}^{\prime }(R,G)=-{\displaystyle \frac{Gm}{{(R\pm {\lambda }_1^{g}m)}^2}},(\because exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g)\to 0).\hfill \end{array}\hfill \end{array}$$

(78)

Therefore, the following conditions are satisfied :

$$\begin{array}{ccc}& & \begin{array}{cc}& -{\displaystyle \frac{Gm}{{(R-{\lambda }_1^{g}m)}^2}}\lesssim -{\displaystyle \frac{Gm}{R^2}}\lesssim -{\displaystyle \frac{Gm}{{(R+{\lambda }_1^{g}m)}^2}}.\hfill \end{array}\hfill \end{array}$$

(79)

If distance R is large enough and the constant ${\lambda }_1^g$ is small enough, that is ${\lambda }_1^g\to 0$, then gravitational acceleration $V_{D_{+}}^{\prime }(R,G)$ becomes Newton’s gravity.

3.4.1. Summarize Gravitational Acceleration for Large Distance R

By the above gravitational acceleration $V_D^{\prime }(R,G)$, we summarize gravitational acceleration as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill & {\tilde{g}}_{\pm }=-{\displaystyle \frac{Gm}{{(R\pm {\lambda }_1^{g}m)}^2}},\hfill \\ & Adjustedgravitationalacceleration,\hfill \\ & Rislargeenough,\hfill \end{array}\hfill \end{array}$$

(80)

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill & g=-{\displaystyle \frac{Gm}{R^2}},\hfill \\ & Originalgravitationalacceleration,\hfill \\ & Rislargeenoughand{\lambda }_1^g\to 0.\hfill \end{array}\hfill \end{array}$$

(81)

Newton’s gravity is satisfied when R is large enough and ${\lambda }_1^g\to 0$. According to g of (81) and ${\tilde{g}}_{\pm }$ of (81) in the above equation, we propose as follows :

Suggestion 3.10. 

Gravity changes on the value ${\lambda }_1^g$ of generalized entropy coefficient.

Let $m>0$ be a real number (mass). For large $R>1$, the following conditions are satisfied :

$$\begin{array}{ccc}& & {\tilde{g}}_{-}=-{\displaystyle \frac{Gm}{{(R-{\lambda }_1^{g}m)}^2}}\lesssim g\lesssim -{\displaystyle \frac{Gm}{{(R+{\lambda }_1^{g}m)}^2}}={\tilde{g}}_{+},\hfill \end{array}$$

(82)

where ${\lambda }_1^g\ge 0$ is a real constant. □

The suggestion above is an expansion of Newton’s gravity. For large distance R, it is possible that adjusted gravity ${\tilde{g}}_{\pm }$ is smaller or larger towards the center than Newton’s gravity g. In other word, gravitational acceleration towards the center of a rotating substance can be slightly changed at sufficient large distance. Gravitational acceleration moving away from the center is changed by the constant ${\lambda }_1^g$. The constant ${\lambda }_1^g$ is the coefficients of degree one of approximate generalized entropy ${\lambda }_2^g{x}^2+{\lambda }_1^{g}x$. In other word, Gravitational acceleration moving away from the center is changed by the coefficients of approximated generalized entropy, that is, gravitational acceleration is considered to depended on entropy.

4. Yukawa Type Potential, Entropy and Comparison of Accelerations(Forces)

4.1. Relationship with Yukawa-Type Potential and Potential $V_{D_{+}}(R,G)$

Potential $V_{D_{+}}(R,G)$ (26) contains an equation similar to Yukawa potential.[17] If we omit the first term in equation (26), we can obtain as follows:

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{+}}{(R,G)}_{omit}& ={\displaystyle \frac{Gm}{R\pm {\lambda }_1^{g}m}}exp(-{\xi }^g{\mu }_2^{g}R\pm {\mu }_1^g).\hfill \end{array}\hfill \end{array}$$

(83)

We consider that by substituting the constants as follows :

$$\begin{array}{ccc}& & \begin{array}{c}\hfill Gm:=g_y^2,{\xi }^g{\mu }_2^g:=\lambda ,{\mu }_1^g:=0,{\lambda }_1^g:=0,\end{array}\hfill \end{array}$$

(84)

where $g_y$ is Yukawa’s constant and $\lambda =mc/\hslash$. [17] Thereby, we can obtain the following Yukawa potential :

$$\begin{array}{c}\hfill V_{yukawa1}\left(R\right)=\pm g_y^2{\displaystyle \frac{exp(-\lambda R)}{R}}.\end{array}$$

(85)

Therefore, it may also have applications in particle theory and other potential theory.

Moreover, we also consider that by substituting the constants as follows :

$$\begin{array}{ccc}& & \begin{array}{c}\hfill {\xi }^g{\mu }_2^g:=\lambda ,exp\left({\mu }_1^g\right):=\alpha ,{\lambda }_1^g:=0,\end{array}\hfill \end{array}$$

(86)

where $\lambda =mc/\hslash$. [18,19] Thereby, we can obtain the following Yukawa-type gravitational potential :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{\alpha }\left(R\right)& =-G{\displaystyle \frac{m}{R}}(1-\alpha exp\left(-\lambda R\right)).\hfill \end{array}\hfill \end{array}$$

(87)

The above equation has a different sign of second term in brackets compared to the equation proposed in as follows : [18,19]

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{yukawa2}\left(R\right)& =-G{\displaystyle \frac{m}{R}}(1+\alpha exp\left(-\lambda R\right)).\hfill \end{array}\hfill \end{array}$$

(88)

The above equation (87) and equation (88) are incompatible. Therefore, it seems necessary to consider another way to integrate two equations. Namely, we need to change the definition of function $Q_{D_{+}}\left(R\right)$ (2.1) and the assumption2.3. These contents are described on next subsection.

4.2. Negative Generalized Partial Entropy

We define generalized entropy $S_{D_{-}}(x,k)$ and negative generalized partial entropy $S_{D_{-}}\left(x\right)$ as follows:

Definition 4.1. 

Generalized Entropy$(-)$$S_{D_{-}}(x,k)$ and negative generalized partial entropy $S_{D_{-}}\left(x\right)$.

Let $x>0$ be a real variable, and $k⪈0$ and $\xi ⪈0$ be real constants. Let $D_{-}\left(x\right)$ be a negative real valued function that partitioning x. $S_{D_{-}}(x,k)$, $S_{D_{-}}\left(x\right)$ and $Q_{D_{-}}\left(x\right)$ are defined as follows:

$$\begin{array}{ccc}\hfill & & S_{D_{-}}(x,k)=k{D}_{-}\left(x\right)S_{D_{-}}\left(x\right)>0,\hfill \end{array}$$

(89)

$$\begin{array}{ccc}& & Q_{D_{-}}\left(x\right)={\displaystyle \frac{-\xi x}{D_{-}\left(x\right)}}⪈0,\hfill \end{array}$$

(90)

where for any positive variable $x>0$, the function $Q_{D_{-}}$ is satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& Q_{D_{-}}⪈0,Q_{D_{-}}^{\prime }⪈0,\xi >Q_{D_{-}}.\hfill \end{array}\hfill \end{array}$$

(91)

We will define $S_{D_{-}}\left(x\right)$ as an approximation of $S_{D_{-}}(x,k)$ and $Q_{D_{-}}\left(x\right)$ :

$$\begin{array}{ccc}& & S_{D_{-}}(x,k)={\lambda }_2{x}^2\pm {\lambda }_{1}x,\hfill \end{array}$$

(92)

$$\begin{array}{ccc}& & Q_{D_{-}}\left(x\right)={\displaystyle \frac{\xi }{exp(-\xi {\displaystyle \int }\mu \left(x\right)dx\pm {\mu }_1)+1}},\hfill \end{array}$$

(93)

$$\begin{array}{ccc}& & S_{D_{-}}\left(x\right)={\displaystyle \frac{1}{k}}{\displaystyle \frac{Q_{D_{-}}\left(x\right)}{-\xi x}}{S}_{D_{-}}(x,k)\le 0.\hfill \end{array}$$

(94)

□

(Note) :

Since the argument of log cannot be negative, therefore we can not define like as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill S_{D_{-}}\left(x\right)& =\left(1+{\displaystyle \frac{x}{D_{-}\left(x\right)}}\right)log\left(1+{\displaystyle \frac{x}{D_{-}\left(x\right)}}\right)-{\displaystyle \frac{x}{D_{-}\left(x\right)}}log\left({\displaystyle \frac{x}{D_{-}\left(x\right)}}\right),\hfill \\ & =\left(1+{\displaystyle \frac{Q_{D_{-}}\left(x\right)}{-\xi }}\right)log\left(1+{\displaystyle \frac{Q_{D_{-}}\left(x\right)}{-\xi }}\right)-{\displaystyle \frac{Q_{D_{-}}\left(x\right)}{-\xi }}log\left({\displaystyle \frac{Q_{D_{-}}\left(x\right)}{-\xi }}\right),\hfill \end{array}\hfill \end{array}$$

(95)

However, let us consider extending it to complex numbers as follows:

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill S_{D_{-}}\left(x\right)& =\left(1+{\displaystyle \frac{Q_{D_{-}}\left(x\right)}{-\xi }}\right)log\left(1+{\displaystyle \frac{Q_{D_{-}}\left(x\right)}{-\xi }}\right)-{\displaystyle \frac{Q_{D_{-}}\left(x\right)}{-\xi }}(log\left({\displaystyle \frac{Q_{D_{-}}\left(x\right)}{\xi }})+log(-1)\right),\hfill \end{array}\hfill \end{array}$$

(96)

where $log(-1)=2(n+1)\pi i$, $n\ge 0$.

Treating the above equation formally, $S_{D_{-}}^{\prime }\left(x\right)$ and $S_{D_{-}}^{\prime \prime }\left(x\right)$ becomes as follows :

$$\begin{array}{ccc}& & S_{D_{-}}^{\prime }\left(x\right)={\displaystyle \frac{Q_{D_{-}}^{\prime }\left(x\right)}{-\xi }}\left(log(1+{\displaystyle \frac{Q_{D_{-}}\left(x\right)}{-\xi }})-log\left({\displaystyle \frac{Q_{D_{-}}\left(x\right)}{-\xi }}\right)\right)-{\displaystyle \frac{Q_{D_{-}}^{\prime }\left(x\right)}{-\xi }}log(-1),\hfill \end{array}$$

(97)

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill S_{D_{-}}^{\prime \prime }\left(x\right)& ={\displaystyle \frac{Q_{D_{-}}^{\prime }\left(x\right)}{-\xi }}\left({\displaystyle \frac{Q_{D_{-}}^{\prime }\left(x\right)}{-\xi +Q_{D_{-}}\left(x\right)}}-{\displaystyle \frac{Q_{D_{-}}^{\prime }\left(x\right)}{Q_{D_{-}}\left(x\right)}}\right)\hfill \\ & +{\displaystyle \frac{Q_{D_{-}}^{\prime \prime }\left(x\right)}{-\xi }}\left(log(1+{\displaystyle \frac{Q_{D_{-}}\left(x\right)}{-\xi }})-log\left({\displaystyle \frac{Q_{D_{-}}\left(x\right)}{-\xi }}\right)\right)-{\displaystyle \frac{Q_{D_{-}}^{\prime \prime }\left(x\right)}{-\xi }}log(-1).\hfill \end{array}\hfill \end{array}$$

(98)

Therefore, we directly adopt definitions of (93) and (94). If we choice the above definition (96), then the above definition (94) change to as follows :

$$\begin{array}{ccc}& & S_{D_{-}}\left(x\right)=Re\left[{\displaystyle \frac{1}{k}}{\displaystyle \frac{Q_{D_{-}}\left(x\right)}{-\xi x}}{S}_{D_{-}}(x,k)\right]\le 0.\hfill \end{array}$$

(99)

where the function $Re\left[x\right]$ is mean real value of x. (End of Note).

4.3. The Function $Q_{D_{-}}\left(x\right)$ for Yukawa Potential

We find the function $Q_{D_{-}}\left(x\right)$ using the idea behind Planck’s radiation formula and logistic function. Put the part of partial entropy $S_{D_{-}}^{\prime \prime }\left(x\right)$ as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& {\displaystyle \frac{Q_{D_{-}}^{\prime }\left(x\right)}{-\xi }}\left({\displaystyle \frac{1}{-\xi +Q_{D_{-}}\left(x\right)}}-{\displaystyle \frac{1}{Q_{D_{-}}\left(x\right)}}\right)\hfill \\ & ={\displaystyle \frac{Q_{D_{-}}^{\prime }\left(x\right)}{-\xi }}\left({\displaystyle \frac{-1}{\xi -Q_{D_{-}}\left(x\right)}}-{\displaystyle \frac{1}{Q_{D_{-}}\left(x\right)}}\right)=\mu \left(x\right)\ge 0,\hfill \end{array}\hfill \end{array}$$

(100)

where $\mu \left(x\right)>0$ is a positive real function. The above parts of ${\displaystyle \frac{Q_{D_{-}}^{\prime }\left(x\right)}{-\xi }}$ is negative and the above parts of $({\displaystyle \frac{-1}{\xi -Q_{D_{-}}\left(x\right)}}-{\displaystyle \frac{1}{Q_{D_{-}}\left(x\right)}})$ is also negative, therefore the above formulas (100) is positive. Transforming according to equation (8), we can represent as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& d{Q}_{D_{-}}\left({\displaystyle \frac{-1}{\xi -Q_{D_{-}}\left(x\right)}}-{\displaystyle \frac{1}{Q_{D_{-}}\left(x\right)}}\right)=-\xi \mu \left(x\right)dx.\hfill \end{array}\hfill \end{array}$$

(101)

Integrating both sides gives as follows :

$$\begin{array}{ccc}& & log(\xi -Q_{D_{-}}\left(x\right))-log\left(Q_{D_{-}}\left(x\right)\right)=-\xi \int \mu \left(x\right)dx\pm {\mu }_1,\hfill \end{array}$$

(102)

where ${\mu }_1>0$ and $\xi >0$. Therefore, the following equation is satisfied :

$$\begin{array}{ccc}& & log({\displaystyle \frac{\xi }{Q_{D_{-}}\left(x\right)}}-1)=-\xi \int \mu \left(x\right)dx\pm {\mu }_1.\hfill \end{array}$$

(103)

By transforming the above equation, it is satisfied as follows :

$$\begin{array}{ccc}& & {\displaystyle \frac{\xi }{Q_{D_{-}}\left(x\right)}}-1=exp(-\xi \int \mu \left(x\right)dx\pm {\mu }_1).\hfill \end{array}$$

(104)

Since the right side is a positive, the left side must also be a positive, that is, it need to be satisfied $\xi >Q_{D_{-}}\left(x\right)$ Therefore, the function $Q_{D_{-}}\left(x\right)$ is represented as follows :

$$\begin{array}{ccc}& & Q_{D_{-}}\left(x\right)={\displaystyle \frac{\xi }{exp(-\xi {\displaystyle \int }\mu \left(x\right)dx\pm {\mu }_1)+1}}.\hfill \end{array}$$

(105)

Therefore, the above equation was adopted as the definition of $Q_{D_{-}}\left(x\right)$.

4.4. The Inverse of Partial Entropy $S_{D_{-}}\left(x\right)$ and Potential $V_{D_{-}}(x,k)$

For the approximation of generalized entropy $S_{D_{-}}(x,k)$, we make the same assumptions as the equation (2). By the definition 4.1, it is satisfied as follows :

$$\begin{array}{ccc}& & S_{D_{-}}(x,k)=k{\displaystyle \frac{-\xi x}{D_{-}\left(x\right)}}{S}_{D_{-}}\left(x\right),\hfill \end{array}$$

(106)

Therefore, the inverse of partial entropy $S_{D_{-}}\left(x\right)$ as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& {\displaystyle \frac{1}{S_{D_{-}}\left(x\right)}}=k{\displaystyle \frac{-\xi x}{Q_{D_{-}}\left(x\right)}}{\displaystyle \frac{1}{{\lambda }_2{x}^2\pm {\lambda }_{1}x}},\hfill \end{array}\hfill \end{array}$$

(107)

where since $S_{D_{-}}\left(x\right)\le 0$ and $Q_{D_{-}}\left(x\right)\ge 0$, then ${\lambda }_2{x}^2\pm {\lambda }_{1}x>0$. By equation (14), we can represent as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& {\displaystyle \frac{1}{S_{D_{-}}\left(x\right)}}=-k{\displaystyle \frac{1}{{\lambda }_{2}x\pm {\lambda }_1}}(exp(-\xi \int \mu \left(x\right)dx\pm {\mu }_1)+1).\hfill \end{array}\hfill \end{array}$$

(108)

We define the inverse of $S_{D_{-}}\left(x\right)$ as potential $V_{D_{-}}(x,k)$ :

$$\begin{array}{ccc}& & \begin{array}{cc}& V_{D_{-}}(x,k)=-k{\displaystyle \frac{\frac{1}{{\lambda }_2}}{x\pm \frac{{\lambda }_1}{{\lambda }_2}}}(1+exp(-\xi \int \mu \left(x\right)dx\pm {\mu }_1)).\hfill \end{array}\hfill \end{array}$$

(109)

In other words, the above potential $V_{D_{-}}(x,k)$ can be defined as the product of a constant k, the partition $Q_{D_{-}}\left(x\right)=-\xi /D_{-}\left(x\right)$, and the inverse of the generalized entropy $S_{D_{-}}(x,k)$.

The first derivative $V_{D_{-}}^{\prime }(x,k)$ is satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{-}}^{\prime }(x,k)& ={\displaystyle \frac{k\frac{1}{{\lambda }_2}}{{(x\pm \frac{{\lambda }_1}{{\lambda }_2})}^2}}\left(1+exp(-\xi \int \mu \left(x\right)dx\pm {\mu }_1)\right)+{\displaystyle \frac{k\frac{1}{{\lambda }_2}\xi \mu \left(x\right)}{x\pm \frac{{\lambda }_1}{{\lambda }_2}}}exp(-\xi \int \mu \left(x\right)dx\pm {\mu }_1).\hfill \end{array}\hfill \end{array}$$

(110)

Same as assumption2.3 and 3.1, the above description assumes the following assumption :

Assumption 4.2. 

It assume that potential $V_{D_{-}}(x,k)$ is defined the inverse of partial entropy $S_{D_{-}}\left(x\right)$. Therefore, acceleration $V_{D_{-}}^{\prime }(x,k)$ is defined the first derivative of $V_{D_{-}}(x,k)$. □

Assumption 4.3. 

Assume the constant $1/{\lambda }_2$ is equal to mass m within R.

Assume that 2-times the inverse of entropy acceleration, $2/S_{D_{-}}^{\prime \prime }(x,k)$, that is, $1/{\lambda }_2$ is equal to the mass m within R. In other word, mass m within R is defined as the inverse of the second-order term of $S_{D_{-}}(x,k)$, that is $1/{\lambda }_2$. □

Therefore, similarly the description of Section 3, we obtain the following results :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill Q_{D_{-}}\left(R\right)& ={\displaystyle \frac{{\xi }^g}{exp(-{\xi }^g{\mu }_2^{g}R\pm {\mu }_1^g)+1}},\hfill \end{array}\hfill \end{array}$$

(111)

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{-}}(R,G)& =-{\displaystyle \frac{Gm}{R\pm {\lambda }_1^{g}m}}(1+exp(-{\xi }^g{\mu }_2^{g}R\pm {\mu }_1^g)),\hfill \end{array}\hfill \end{array}$$

(112)

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill {\widehat{g}}_{\pm }=& -V_{D_{-}}^{\prime }(R,G)\hfill \\ \hfill =& -{\displaystyle \frac{Gm}{{(R\pm {\lambda }_1^{g}m)}^2}}\left(1+exp(-{\xi }^g{\mu }_2^{g}R\pm {\mu }_1^g)\right)-{\displaystyle \frac{Gm{\xi }^g{\mu }_2^g}{R\pm {\lambda }_1^{g}m}}exp(-{\xi }^g{\mu }_2^{g}R\pm {\mu }_1^g),\hfill \end{array}\hfill \end{array}$$

(113)

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill \underset{{\mu }_1^g\to 0}{lim}{\widehat{g}}_{\pm {\lambda }_1^g+{\mu }_1^g}=& -{\displaystyle \frac{2G}{{(\pm {\lambda }_1^g)}^{2}m}}-{\displaystyle \frac{G{\xi }^g{\mu }_2^g}{\pm {\lambda }_1^g}},(\because R\to 0)\hfill \end{array}\hfill \end{array}$$

(114)

where ${\xi }^g⪈0$, ${\mu }_2^g⪈0$, ${\mu }_1^g\ge 0$ and ${\lambda }_1^g\ge 0$.

The above equation (111) resembles a distribution model of nuclei, and the negative of (111) resembles Woods-Saxon type potential. The above equation (112) and Yukawa-type potential (88) are compatible. Namely, setting as follows :

$$\begin{array}{c}\hfill exp\left({\mu }_1^g\right):=\alpha ,{\xi }^g{\mu }_2^g:=\lambda ,{\lambda }_1^g:=0,\end{array}$$

(115)

then the equation (112) become Yukawa-type potential (88). The second term of equation (112) is same as the negative representation of Yukawa potential (88). Namely, by introducing negative partial entropy, that is, negative generalized partial entropy $S_{D_{-}}\left(x\right)\le 0$, Yukawa-type potential can be explained. For comparison, we describe results of Section 3 as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill Q_{D_{+}}\left(R\right)& ={\displaystyle \frac{{\xi }^g}{exp(-{\xi }^g{\mu }_2^{g}R+{\mu }_1^g)-1}},\hfill \end{array}\hfill \end{array}$$

(116)

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{+}}(R,G)& =-{\displaystyle \frac{Gm}{R\pm {\lambda }_1^{g}m}}(1-exp(-{\xi }^g{\mu }_2^{g}R\pm {\mu }_1^g)),\hfill \end{array}\hfill \end{array}$$

(117)

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill {\overline{g}}_{\pm }& =-V_{D_{+}}^{\prime }(R,G)\hfill \\ & =-{\displaystyle \frac{Gm}{{(R\pm {\lambda }_1^{g}m)}^2}}\left(1-exp(-{\xi }^g{\mu }_2^{g}R\pm {\mu }_1^g)\right)+{\displaystyle \frac{Gm{\xi }^g{\mu }_2^g}{R\pm {\lambda }_1^{g}m}}exp(-{\xi }^g{\mu }_2^{g}R\pm {\mu }_1^g),\hfill \end{array}\hfill \end{array}$$

(118)

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill \underset{{\mu }_1^g\to 0}{lim}{\overline{g}}_{\pm {\lambda }_1^g+{\mu }_1^g}& ={\displaystyle \frac{G{\xi }^g{\mu }_2^g}{\pm {\lambda }_1^g}},(\because R\to 0),\hfill \end{array}\hfill \end{array}$$

(119)

where ${\xi }^g⪈0$, ${\mu }_2^g⪈0$, ${\mu }_1^g\ge 0$ and ${\lambda }_1^g\ge 0$. The second term of equation (117) is same as the positive representation of Yukawa-type potential (85).

As weak proximity acceleration, we put the equation (119) as follows :

$$\begin{array}{ccc}& & g_{\pm }^{wp}=\underset{{\mu }_1^g\to 0}{lim}{\overline{g}}_{\pm {\lambda }_1^g+{\mu }_1^g}={\displaystyle \frac{G{\xi }^g{\mu }_2^g}{\pm {\lambda }_1^g}},(\because R\to 0),\hfill \end{array}$$

(120)

and as strong proximity acceleration, we put the equation (114) as follows :

$$\begin{array}{ccc}& & g_{\pm }^{sp}=\underset{{\mu }_1^g\to 0}{lim}{\widehat{g}}_{\pm {\lambda }_1^g+{\mu }_1^g}=-{\displaystyle \frac{2G}{{(\pm {\lambda }_1^g)}^{2}m}}-{\displaystyle \frac{G{\xi }^g{\mu }_2^g}{\pm {\lambda }_1^g}},(\because R\to 0).\hfill \end{array}$$

(121)

Acceleration $g_{\pm }^{wp}$ has no effect of mass, but acceleration $g_{\pm }^{sp}$ does have an effect of mass. It may consider that there exists 11-types of acceleration related to gravitational acceleration g, such as ${\overline{g}}_{\pm },{\widehat{g}}_{\pm },{\tilde{g}}_{\pm },g_{\pm }^{sp}$, $g_{\pm }^{wp}$ and g.

4.5. Comparing Accelerations ${\overline{g}}_{\pm },{\widehat{g}}_{\pm },g_{\pm }^{sp}$ and $g_{\pm }^{wp}$

Comparing the above (113), (118), (120) and (121), we obtain the following are relationships :

$$\begin{array}{ccc}& & \begin{array}{cc}& g_{+}^{sp}<{\widehat{g}}_{+}<{\tilde{g}}_{+}<{\overline{g}}_{+}<g_{+}^{wp},\hfill \end{array}\hfill \end{array}$$

(122)

$$\begin{array}{ccc}& & \begin{array}{ccc}& {\widehat{g}}_{-}<{\tilde{g}}_{-}<g_{-}^{sp}<g_{-}^{wp}<{\overline{g}}_{-},\hfill & \because )m<{\displaystyle \frac{1}{{\lambda }_1^g{\xi }^g{\mu }_2^g}},\end{array}\hfill \end{array}$$

(123)

$$\begin{array}{ccc}& & \begin{array}{ccc}& {\overline{g}}_{-}<g_{-}^{wp}<g_{-}^{sp}<{\tilde{g}}_{-}<{\widehat{g}}_{-},\hfill & \because ){\displaystyle \frac{1}{{\lambda }_1^g{\xi }^g{\mu }_2^g}}<m.\end{array}\hfill \end{array}$$

(124)

It assumed that $g_{-}^{wp}<{\tilde{g}}_{-}$, it satisfied as follows :

$$\begin{array}{ccc}& & R=\left({\lambda }_1^g{m}_p\pm \sqrt{{\displaystyle \frac{{\lambda }_1^g{m}_p}{{\xi }^g{\mu }_2^g}}}\right)>0.\hfill \end{array}$$

(125)

Therefore, it satisfied as follows :

$$\begin{array}{ccc}& & {\displaystyle \frac{1}{{\lambda }_1^g{\xi }^g{\mu }_2^g}}<m.\hfill \end{array}$$

(126)

Similarly, it assumed that $g_{-}^{sp}<{\tilde{g}}_{-}$, it satisfied as follows :

$$\begin{array}{ccc}& & R=\left({\lambda }_1^g{m}_p\pm {\lambda }_1^g{m}_p\sqrt{{\displaystyle \frac{1}{2-{\lambda }_1^g{m}_p{\xi }^g{\mu }_2^g}}}\right)>0.\hfill \end{array}$$

(127)

Therefore, it satisfied as follows :

$$\begin{array}{ccc}\hfill & & {\displaystyle \frac{1}{{\lambda }_1^g{\xi }^g{\mu }_2^g}}<m.\hfill \end{array}$$

(128)

Namely, since $R>0$, we only consider that the inequalities (124) of the condition ${\displaystyle \frac{1}{{\lambda }_1^g{\xi }^g{\mu }_2^g}}<m$.

Summarizing the above inequalitise, the following are satisfied :

$$\begin{array}{ccc}& & \begin{array}{cc}& g_{+}^{sp}<{\widehat{g}}_{+}<{\overline{g}}_{-}<g_{-}^{wp}<g_{-}^{sp}<{\tilde{g}}_{-}<g<{\tilde{g}}_{+}<{\overline{g}}_{+}<{\widehat{g}}_{-}<0<g_{+}^{wp},\hfill \\ & \because ){\displaystyle \frac{1}{{\lambda }_1^g{\xi }^g{\mu }_2^g}}<m.\hfill \end{array}\hfill \end{array}$$

(129)

(Note) : Since the direction toward the center is negative, the more negative value(smaller), the greater acceleration(force) toward the center. (End of Note)

4.6. One Attempt to Compare the Ratios of 4-Forces

For example, we consider the above inequalities (129). Set constants as follows :

$$\begin{array}{ccc}& & \begin{array}{ccc}& G:=6.674E-11,\hfill & Gisthegravitationalconstant,\\ & {\xi }^g:=h=6.626E-34,\hfill & hisPlanckconstant,\\ & m:=m_p=2.176E-8,\hfill & m_{p}isPlanckmass\left(kg\right),\\ & {\mu }_1^g⪈0\hfill & {\mu }_1^{g}isarealconstant,\\ & R\le 1.305E+26,\hfill & RisaradiuswithintheUniverse\left(meter\right).\end{array}\hfill \end{array}$$

(130)

where according to case 2) of suggestion3.3 and of suggestion3.5, inequalities (26) and (128), the values ${\lambda }_1^g$ and ${\mu }_1^g$ are satisfied as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}& 0\le 1+(R\pm {\lambda }_1^{g}m){\xi }^g{\mu }_2^g,{\displaystyle \frac{-1}{{\lambda }_1^g{\xi }^g{\mu }_2^g}}<m.\hfill \end{array}\hfill \end{array}$$

(131)

(Note) : The values of ${\mu }_2^g$ in each equation $g_{\pm }^{sp}$ and $g_{-}^{wp}$ take on different values ${\left({\mu }_2^g\right)}_{\pm }^{sp}$ and ${\left({\mu }_2^g\right)}_{-}^{wp}$, respectively . (End of Note)

On the above inequalities (129), the following are satisfied :

• Compare ${\widehat{g}}_{-}$ and $g_{-}^{wp}$ :
  The ratio of gravitational ${\widehat{g}}_{-}$ and weak proximity acceleration$(-)$$g_{-}^{wp}$ are obtained as follows :

  $$\begin{array}{ccc}& & \begin{array}{cc}\hfill \left|{\displaystyle \frac{{\widehat{g}}_{-}}{g_{-}^{wp}}}\right|& \simeq |{\displaystyle \frac{\frac{2G{m}_p}{{(R\pm \left({\left({\tilde{\lambda }}_1^g\right)}_{-}\right)m_p)}^2}}{\frac{G{\xi }^g{\left({\mu }_2^g\right)}_{-}^{wp}}{{\left({\lambda }_1^g\right)}_{-}^{wp}}}}+{\displaystyle \frac{\frac{G{m}_p{\xi }^g}{(R\pm \left({\left({\tilde{\lambda }}_1^g\right)}_{-}\right)m_p)}}{\frac{G{\xi }^g{\left({\mu }_2^g\right)}_{-}^{wp}}{{\left({\lambda }_1^g\right)}_{-}^{wp}}}}|\hfill \\ & \simeq |{\displaystyle \frac{2·{10}^{-8}{\left({\lambda }_1^g\right)}_{-}^{wp}}{{10}^{2A-34}{\left({\mu }_2^g\right)}_{-}^{wp}}}+{\displaystyle \frac{{10}^{-8}{\left({\widehat{\lambda }}_2^g\right)}_{-}}{{10}^{A-34}{\left({\mu }_2^g\right)}_{-}^{wp}}}|\hfill \\ & \simeq 1E-34,\hfill \end{array}\hfill \end{array}$$

  (132)

  where

  $$\begin{array}{ccc}& & \begin{array}{ccc}& {\left({\mu }_2^g\right)}_{-}^{wp}:=1E+60,\hfill & {\left({\mu }_2^g\right)}_{-}^{wp}istheconstant{\mu }_2^{g}of{g}_{-}^{wp},\\ & {\left({\lambda }_1^g\right)}_{-}^{wp}:=1E+2A,\hfill & {\left({\lambda }_1^g\right)}_{-}^{wp}istheconstant{\lambda }_1^{g}of{g}_{-}^{wp},\\ & {\left({\widehat{\mu }}_2^g\right)}_{-}:=1E+A,\hfill & {\left({\widehat{\mu }}_2^g\right)}_{-}istheconstant{\mu }_2^{g}of{\widehat{g}}_{-},\\ & {\left({\widehat{\lambda }}_1^g\right)}_{-}:=1E+A,\hfill & {\left({\widehat{\lambda }}_1^g\right)}_{-}istheconstant{\lambda }_1^{g}of{\widehat{g}}_{-},\\ & {(R\pm \left({\left({\tilde{\lambda }}_1^g\right)}_{-}\right)m_p)}^2\simeq 1E+2A,\hfill & 0\le A\le 26,Aisaconstant.\end{array}\hfill \end{array}$$

  (133)
  (Note) : Here is satisfied as follows :

  $$\begin{array}{ccc}& & \begin{array}{cc}& exp(-{\xi }^g\left({\left({\widehat{\mu }}_2^g\right)}_{-}\right)R+{\mu }_1^g)>exp\left(0\right)=1,\hfill \end{array}\hfill \end{array}$$

  (134)

  where ${\mu }_2^g$ is small enough. Therefore, if the case ${\widehat{g}}_{+}$, then $Q_{D_{-}}\left(R\right)>{\displaystyle \frac{1}{2}}$. Similarly discussing for ${\overline{g}}_{+}$, it is satisfied $Q_{D_{+}}\left(R\right)>0$. (End of Note)
• Compare ${\tilde{g}}_{\pm }$ and $g_{-}^{wp}$ :
  The ratio of gravitational ${\tilde{g}}_{\pm }$ and weak proximity acceleration$(-)$$g_{-}^{wp}$ are obtained as follows :

  $$\begin{array}{ccc}& & \begin{array}{cc}\hfill \left|{\displaystyle \frac{{\tilde{g}}_{\pm }}{g_{-}^{wp}}}\right|& =\left|{\displaystyle \frac{\frac{G{m}_p}{{(R\pm \left({\left({\tilde{\lambda }}_1^g\right)}_{-}\right)m_p)}^2}}{\frac{G{\xi }^g{\left({\mu }_2^g\right)}_{-}^{wp}}{{\left({\lambda }_1^g\right)}_{-}^{wp}}}}\right|=\left|{\displaystyle \frac{{10}^{-8}{\left({\lambda }_1^g\right)}_{-}^{wp}}{{10}^{2A-34}{\left({\mu }_2^g\right)}_{-}^{wp}}}\right|\simeq 1E-34,\hfill \end{array}\hfill \end{array}$$

  (135)

  where

  $$\begin{array}{ccc}& & \begin{array}{ccc}& {\left({\mu }_2^g\right)}_{-}^{wp}:=1E+60,\hfill & {\left({\mu }_2^g\right)}_{-}^{wp}istheconstant{\mu }_2^{g}of{g}_{-}^{wp},\\ & {\left({\lambda }_1^g\right)}_{-}^{wp}:=1E+2A,\hfill & {\left({\lambda }_1^g\right)}_{-}^{wp}istheconstant{\lambda }_1^{g}of{g}_{-}^{wp},\\ & {(R\pm \left({\left({\tilde{\lambda }}_1^g\right)}_{-}\right)m_p)}^2\simeq 1E+2A,\hfill & 0\le A\le 26,Aisaconstant.\end{array}\hfill \end{array}$$

  (136)
• Compare $g_{+}^{sp}$ and $g_{-}^{wp}$ :
  The ratio of strong proximity $g_{+}^{sp}$ and weak proximity acceleration$(-)$$g_{-}^{wp}$ are obtained as follows :

  $$\begin{array}{ccc}& & \begin{array}{cc}\hfill \left|{\displaystyle \frac{g_{+}^{sp}}{g_{-}^{wp}}}\right|& =\left|{\displaystyle \frac{-\frac{2G}{{\left({\lambda }_1^g\right)}^2{m}_p}-\frac{G{\xi }^g{\left({\mu }_2^g\right)}_{+}^{sp}}{+{\lambda }_1^g}}{\frac{G{\xi }^g{\left({\mu }_2^g\right)}_{-}^{wp}}{-{\lambda }_1^g}}}\right|=\left({\displaystyle \frac{2}{{\lambda }_1^g{m}_p{\xi }^g{\left({\mu }_2^g\right)}_{-}^{wp}}}+{\displaystyle \frac{{\left({\mu }_2^g\right)}_{+}^{sp}}{{\left({\mu }_2^g\right)}_{-}^{wp}}}\right)\simeq 1E+5,\hfill \end{array}\hfill \end{array}$$

  (137)

  where

  $$\begin{array}{ccc}& & \begin{array}{ccc}& {\left({\mu }_2^g\right)}_{+}^{sp}:=1E+65,\hfill & {\left({\mu }_2^g\right)}_{+}^{sp}istheconstant{\mu }_2^{g}of{g}_{+}^{sp},\\ & {\left({\mu }_2^g\right)}_{-}^{wp}:=1E+60,\hfill & {\left({\mu }_2^g\right)}_{-}^{wp}istheconstant{\mu }_2^{g}of{g}_{-}^{wp},\\ & {\lambda }_1^g:=1E-20,\hfill & {\lambda }_1^{g}istheconstant{\lambda }_1^{g}of{g}_{-}^{wp}and{g}_{+}^{sp}.\end{array}\hfill \end{array}$$

  (138)
• Compare $g_{-}^{sp}$ and $g_{-}^{wp}$ :
  The ratio of strong proximity $g_{+}^{sp}$ and weak proximity acceleration$(-)$$g_{-}^{wp}$ are obtained as follows :

  $$\begin{array}{ccc}& & \begin{array}{cc}\hfill \left|{\displaystyle \frac{g_{-}^{sp}}{g_{-}^{wp}}}\right|& =\left|{\displaystyle \frac{-\frac{2G}{{\left({\lambda }_1^g\right)}^2{m}_p}-\frac{G{\xi }^g{\left({\mu }_2^g\right)}_{-}^{sp}}{+{\lambda }_1^g}}{\frac{G{\xi }^g{\left({\mu }_2^g\right)}_{-}^{wp}}{-{\lambda }_1^g}}}\right|=\left|{\displaystyle \frac{2}{{\lambda }_1^g{m}_p{\xi }^g{\left({\mu }_2^g\right)}_{-}^{wp}}}-{\displaystyle \frac{{\left({\mu }_2^g\right)}_{-}^{sp}}{{\left({\mu }_2^g\right)}_{-}^{wp}}}\right|\simeq 1,\hfill \end{array}\hfill \end{array}$$

  (139)

  where

  $$\begin{array}{ccc}& & \begin{array}{ccc}& {\left({\mu }_2^g\right)}_{-}^{sp}:=1E+60,\hfill & {\left({\mu }_2^g\right)}_{-}^{sp}istheconstant{\mu }_2^{g}of{g}_{-}^{sp},\\ & {\left({\mu }_2^g\right)}_{-}^{wp}:=1E+60,\hfill & {\left({\mu }_2^g\right)}_{-}^{wp}istheconstant{\mu }_2^{g}of{g}_{-}^{wp},\\ & {\lambda }_1^g:=1E-20,\hfill & {\lambda }_1^{g}istheconstant{\lambda }_1^{g}of{g}_{-}^{wp}and{g}_{-}^{sp}.\end{array}\hfill \end{array}$$

  (140)

By considering $g_{+}^{sp}$ as strong force, $g_{-}^{wp}$ as weak force and ${\tilde{g}}_{\pm }$ (or g) as gravity, the ratio of the size of the fundamental 3-forces of nature (strong force, weak force and gravity) with strong force being 1 is represented as follows :

$$\begin{array}{ccc}& & \begin{array}{ccc}& strong,weak,gravity,\hfill & \\ & 1,1E-5,1E-39,\hfill & \\ & g_{+}^{sp},g_{-}^{wp},{\tilde{g}}_{\pm }\hfill & \\ & {\left({\mu }_2^g\right)}_{+}^{sp},{\left({\mu }_2^g\right)}_{-}^{wp}or{\left({\mu }_2^g\right)}_{-}^{sp},{\displaystyle \frac{m_p}{{\xi }^g}},\hfill & \\ & 1E+65,1E+60,1E+26.\hfill \end{array}\hfill \end{array}$$

(141)

The above ratios correspond to those of ${\left({\mu }_2^g\right)}_{+}^{sp}\simeq 1E+65$, ${\left({\mu }_2^g\right)}_{-}^{wp}\simeq 1E+60$, ${\left({\mu }_2^g\right)}_{-}^{sp}\simeq 1E+60$ and ${\tilde{g}}_{\pm }\simeq {\displaystyle \frac{m_p}{{\xi }^g}}\simeq 1E+26$.

Next, let us consider the relationship with electromagnetic forces. We focus that the relationship between electromagnetic force and gravity are seen as similar forces by suggestion 3.8. We apply this suggestion to equation $\widehat{g}\pm$ and set expanded electromagnetic acceleration(force) as follows:

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill {\overline{E}}_{\pm }& :=-V_{D_{+}}^{\prime }(R,k_c)\hfill \\ & =-{\displaystyle \frac{k_c{e}_q}{{(R\pm {\lambda }_1^c{e}_q)}^2}}\left(1-exp(-{\xi }^c{\mu }_2^{c}R\pm {\mu }_1^c)\right)+{\displaystyle \frac{k_c{e}_q{\xi }^c{\mu }_2^c}{R\pm {\lambda }_1^c{e}_q}}exp(-{\xi }^c{\mu }_2^{c}R\pm {\mu }_1^c),\hfill \end{array}\hfill \end{array}$$

(142)

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill {\widehat{E}}_{\pm }& :=-V_{D_{-}}^{\prime }(R,k_c)\hfill \\ & =-{\displaystyle \frac{k_c{e}_q}{{(R\pm {\lambda }_1^c{e}_q)}^2}}\left(1+exp(-{\xi }^c{\mu }_2^{c}R\pm {\mu }_1^c)\right)-{\displaystyle \frac{k_c{e}_q{\xi }^c{\mu }_2^c}{R\pm {\lambda }_1^c{e}_q}}exp(-{\xi }^c{\mu }_2^{c}R\pm {\mu }_1^c),\hfill \end{array}\hfill \end{array}$$

(143)

where ${\xi }^c⪈0$, ${\mu }_2^c⪈0$, ${\mu }_1^c\ge 0$ and ${\lambda }_1^c\ge 0$. Therefore, we set as follows :

$$\begin{array}{ccc}& & \begin{array}{ccc}& G:=6.674E-11,\hfill & Gisthegravitationalconstant,\\ & {\xi }^g={\xi }^c:=h=6.626E-34,\hfill & hisPlanckconstant,\\ & k_c:=8.987E+9,\hfill & k_{c}isCoulom{b}^{\prime }sconstant,\\ & e_q:=1.604E-19,\hfill & e_{q}iselementarycharge,\\ & m:=m_p=2.176E-8,\hfill & m_{p}isPlanckmass(unit:kg),\\ & {\mu }_1^{g}issmallenough,{\mu }_1^g\to 0,\hfill & {\mu }_1^{g}isarealconstant,\\ & {\mu }_1^{c}issmallenough,{\mu }_1^c\to 0,\hfill & {\mu }_1^{c}isarealconstant,\\ & Rissmallenough,\hfill & Risadistance(unit:meter).\end{array}\hfill \end{array}$$

(144)

where according to case 2) of suggestion 3.5, the values ${\lambda }_1^g$ and ${\mu }_1^g$ are satisfied as follows :

$$\begin{array}{c}\hfill 0<1\pm {\lambda }_1^g{m}_p{\xi }^g{\mu }_2^g,0<1\pm {\lambda }_1^c{e}_q{\xi }^c{\mu }_2^c,(R\to 0).\end{array}$$

(145)

(Note) : The values of ${\mu }_2^c$ in each equation ${\widehat{E}}_{+}$ and ${\overline{E}}_{-}$, take on different values ${\widehat{\mu }}_2^c$ and ${\overline{\mu }}_2^c$, respectively . (End of Note)

On the above inequalities (129), the following are satisfied :

• Compare ${\widehat{E}}_{+}$ and $g_{-}^{wp}$ :
  The ratio of electromagnetic ${\widehat{E}}_{+}$ and weak proximity acceleration(-) $g_{-}^{wp}$ are obtained as follows :

  $$\begin{array}{ccc}& & \begin{array}{cc}\hfill \left|{\displaystyle \frac{{\widehat{E}}_{+}}{g_{-}^{wp}}}\right|& =|{\displaystyle \frac{-\frac{2k_c}{{{\lambda }_1^c}^2{e}_q}}{\frac{G{\xi }^g{\left({\mu }_2^g\right)}_{-}^{wp}}{{\lambda }_1^g}}}+{\displaystyle \frac{-\frac{k_c{\xi }^c{\left({\widehat{\mu }}_2^c\right)}_{+}}{{\lambda }_1^c}}{\frac{G{\xi }^g{\left({\mu }_2^g\right)}_{-}^{wp}}{{\lambda }_1^g}}}|\simeq 1.347E+3\simeq 1E+3,\hfill \end{array}\hfill \end{array}$$

  (146)

  where

  $$\begin{array}{ccc}& & \begin{array}{ccc}& {\left({\widehat{\mu }}_2^c\right)}_{+}:=1E+43,\hfill & {\left({\widehat{\mu }}_2^c\right)}_{+}istheconstant{\mu }_2^{c}of{\widehat{E}}_{+},\\ & {\left({\mu }_2^g\right)}_{-}^{wp}:=1E+60,\hfill & {\left({\mu }_2^g\right)}_{-}^{wp}istheconstant{\mu }_2^{g}of{g}_{-}^{wp},\\ & {\lambda }_1^g={\lambda }_1^c<1E-20.\hfill \end{array}\hfill \end{array}$$

  (147)
• Compare ${\overline{E}}_{-}$ and $g_{+}^{wp}$ :
  the ratio of electromagnetic ${\overline{E}}_{-}$ and weak proximity acceleration(-) $g_{-}^{wp}$ are obtained as follows :

  $$\begin{array}{ccc}& & \begin{array}{cc}\hfill \left|{\displaystyle \frac{{\overline{E}}_{-}}{g_{-}^{wp}}}\right|& ={\displaystyle \frac{k_c{\xi }^c{\left({\overline{\mu }}_2^c\right)}_{-}{\lambda }_1^g}{G{\xi }^g{\left({\mu }_2^g\right)}_{-}^{wp}{\lambda }_1^c}}exp\left({\mu }_1^c\right)\simeq 1.347E+3\simeq 1E+3\hfill \end{array}\hfill \end{array}$$

  (148)

  where

  $$\begin{array}{ccc}& & \begin{array}{ccc}& {\left({\overline{\mu }}_2^c\right)}_{-}:=1E+43,\hfill & {\left({\overline{\mu }}_2^c\right)}_{+}istheconstant{\mu }_2^{c}of{\overline{E}}_{-},\\ & {\left({\mu }_2^g\right)}_{-}^{wp}:=1E+60,\hfill & {\left({\mu }_2^g\right)}_{-}^{wp}istheconstant{\mu }_2^{g}of{g}_{-}^{wp},\\ & {\lambda }_1^g={\lambda }_1^c<1E-20.\hfill \end{array}\hfill \end{array}$$

  (149)

where since the above ratio changes depending on the value of R, therefore for the comparison of the ratios, R is small enough in the near field. We interpret ${\widehat{E}}_{+}$ and ${\overline{E}}_{-}$ as electromagnetic. By combine with inequalities (141), the ratio of the size of the fundamental 4-forces of nature (strong force, electromagnetic force, weak force and gravity) with strong force being 1 is represented as follows :

$$\begin{array}{ccc}& & \begin{array}{ccc}& strong,electromagnetic,weak,gravity,\hfill & \\ & 1,1E-2,1E-5,1E-39,\hfill & \\ & g_{+}^{sp},{\widehat{E}}_{+}or{\overline{E}}_{-},g_{-}^{wp},{\tilde{g}}_{\pm },\hfill & \\ & {\left({\mu }_2^g\right)}_{+}^{sp},{\displaystyle \frac{k_c}{G}}{\left({\widehat{\mu }}_2^c\right)}_{+}or{\displaystyle \frac{k_c}{G}}{\left({\overline{\mu }}_2^c\right)}_{-},{\left({\mu }_2^g\right)}_{-}^{wp},{\displaystyle \frac{m_p}{{\xi }^g}},\hfill & \\ & 1E+65,1E+63,1E+60,1E+26,\hfill \end{array}\hfill \end{array}$$

(150)

The above ratios correspond to those of ${\left({\mu }_2^g\right)}_{+}^{sp}\simeq 1E+65$, ${\displaystyle \frac{k_c}{G}}{\left({\widehat{\mu }}_2^c\right)}_{+}\simeq {\displaystyle \frac{k_c}{G}}{\left({\overline{\mu }}_2^c\right)}_{-}\simeq 1E+63$, ${\left({\mu }_2^g\right)}_{-}^{wp}\simeq 1E+60$ and ${\displaystyle \frac{m_p}{{\xi }^g}}\simeq 1E+26$. Therefore by considering strong proximity force $g_{+}^{sp}$ is regarded as strong force, weak proximity force $g_{-}^{wp}$ as weak force, adjusted gravity ${\tilde{g}}_{\pm }$ as gravity and expanded electromagnetic force ${\widehat{E}}_{+}$ or ${\overline{E}}_{-}$ as electromagnetic force, it possible to explain the ratios of 4-forces in nature.

4.7. Relationship Diagram

The difference between equations (26) and (117) are whether generalized partial entropy is a positive or a negative. Under the above definition 4.1, the equation (94) is negative. Namely, it means we assume negative generalized partial entropy. If we assume negative generalized partial entropy, we can obtain Yukawa-type gravitational potential. In other words, the existence of Yukawa-type equation may indicate the existence of negative partial entropy. Therefore, particle physics can be also consider to be related to entropy.

Relationship diagram :

$$\begin{array}{ccc}& & \begin{array}{ccc}{S}_{D_{+}}(k,x)=k{\displaystyle \frac{\xi }{Q_{D_{+}}\left(x\right)}}{S}_{D_{+}}\left(x\right)>0& & S_{D_{-}}(k,x)=-k{\displaystyle \frac{\xi }{Q_{D_{-}}\left(x\right)}}{S}_{D_{-}}\left(x\right)>0\\ S_{D_{+}}\left(x\right)>0& \stackrel{negative}{⟶}& S_{D_{-}}\left(x\right)<0\\ PartialEntropy& & NegativePartialEntropy\\ \downarrow & & \downarrow \end{array}\hfill \end{array}$$

$$\begin{array}{ccc}& & \begin{array}{ccc}{Q}_{D_{+}}\left(x\right)={\displaystyle \frac{\xi }{exp(-\xi {\displaystyle \int }\mu \left(x\right)dx\pm {\mu }_1)-1}}& & Q_{D_{-}}\left(x\right)={\displaystyle \frac{\xi }{exp(-\xi {\displaystyle \int }\mu \left(x\right)dx\pm {\mu }_1)+1}}\\ Planck-typedistribution& & Nucleitypedistribution\\ \downarrow & & \downarrow \\ V_{D_{+}}(R,G)=& & V_{D_{-}}(R,G)=\\ -{\displaystyle \frac{Gm}{R\pm {\lambda }_1^{g}m}}(1-exp(-{\xi }^g{\mu }_2^{g}R\pm {\mu }_1^g))& & -{\displaystyle \frac{Gm}{R\pm {\lambda }_1^{g}m}}(1+exp(-{\xi }^g{\mu }_2^{g}R\pm {\mu }_1^g))\\ Plancktypepotential& & Nucleitypepotential\\ \\ \stackrel{{\lambda }^g\to 0}{\stackrel{{\xi }^g{\mu }_2^g:=\lambda }{exp\left({\mu }_1^g\right):=\alpha }}\downarrow & & \stackrel{{\lambda }^g\to 0}{\stackrel{{\xi }^g{\mu }_2^g:=\lambda }{exp\left({\mu }_1^g\right):=\alpha }}\downarrow \end{array}\hfill \end{array}$$

(151)

$$\begin{array}{ccc}& & \begin{array}{ccc}{V}_{\alpha }\left(R\right)=-G{\displaystyle \frac{m}{R}}(1-\alpha exp\left(-\lambda R\right))& & V_{yukawa2}\left(R\right)=-G{\displaystyle \frac{m}{R}}(1+\alpha exp\left(-\lambda R\right))\\ OmittedPlancktypepotential& & Yukawatypepotential\\ R\to large\downarrow & & R\to large\downarrow \\ V_{\alpha }\left(R\right)=-G{\displaystyle \frac{m}{R}}& & V_{yukawa2}\left(R\right)=-G{\displaystyle \frac{m}{R}}\\ \downarrow & & \downarrow \end{array}\hfill \end{array}$$

$$\begin{array}{ccc}& & \begin{array}{ccc}g=-V_{\alpha }^{\prime }\left(R\right)=-G{\displaystyle \frac{m}{R^2}}\to & g=-G{\displaystyle \frac{m}{R^2}}& \leftarrow g=-V_{yukawa2}^{\prime }\left(R\right)=-G{\displaystyle \frac{m}{R^2}}\\ Gravitationalacceleration& & Gravitationalacceleration\\ R\to 0\downarrow & & R\to 0\downarrow \\ \underset{{\mu }_1^g\to 0}{lim}{\overline{g}}_{\pm {\lambda }_1^g+{\mu }_1^g}={\displaystyle \frac{G{\xi }^g{\mu }_2^g}{\pm {\lambda }_1^g}}& & \underset{{\mu }_1^g\to 0}{lim}{\overline{g}}_{\pm {\lambda }_1^g+{\mu }_1^g}=-{\displaystyle \frac{2G}{{(\pm {\lambda }_1^g)}^{2}m}}-{\displaystyle \frac{G{\xi }^g{\mu }_2^g}{\pm {\lambda }_1^g}}\\ WeakProximity{g}_{\pm }^{wp}& & StrongProximity{g}_{\pm }^{sp}\end{array}\hfill \end{array}$$

5. Possibility That Mass Generation by Entropy, the Existence of New Forces and Fluctuating of the Constant G

5.1. Possibility That Mass Generation by Entropy

Furthermore, the inverse of the second-order part ${\lambda }_2^g$ of the approximation of generalized entropy is considered to be mass m. Leave this the first-order part ${\lambda }_1^g$ as it is. The generalized entropy $S_{D_{\pm }}(R,G)$ is determined by mass m, distance R (the radius of range under consideration) and the correction factor ${\lambda }_1^g$. In other words, mass m is determined by generalized entropy $S_{D_{\pm }}(R,G)$, distance R and the correction factor ${\lambda }_1^g$. By transforming equations (2), mass m can be represented as follows :

$$\begin{array}{ccc}& & m={\displaystyle \frac{R^2}{S_{D_{\pm }}(R,G)\mp {\lambda }_1^{g}R}}.\hfill \end{array}$$

(152)

Moreover, by transforming equations (18) and $S_{D_{\pm }}(R,G)=G{\displaystyle \frac{{\xi }^{g}R}{Q_{D_{\pm }}\left(R\right)}}{S}_{D_{\pm }}\left(R\right)$, mass m can be represented as follows :

$$\begin{array}{ccc}& & \begin{array}{cc}\hfill m& ={\displaystyle \frac{R^2}{G·D_{\pm }\left(R\right)S_{D_{\pm }}(R,G)\mp {\lambda }_1^{g}R}}\hfill \\ & ={\displaystyle \frac{R}{G\frac{{\xi }^g{S}_{D_{\pm }}\left(R\right)}{Q_{D_{\pm }}\left(R\right)}\mp {\lambda }_1^g}}\hfill \\ & ={\displaystyle \frac{R}{(exp(-{\xi }^g{\mu }_2^{g}R\pm {\mu }_1^g)\mp 1)G{S}_{D_{\pm }}\left(R\right)\mp {\lambda }_1^g}}.\hfill \end{array}\hfill \end{array}$$

(153)

Namely, mass m can be represented as generalized partial entropy $S_{D_{\pm }}\left(R\right)$, distance R, correction factors ${\lambda }_1^g$, ${\mu }_1^g$, ${\mu }_2^g$ and constants G, ${\xi }^g$. Mass is also considered to depended on entropy. Besides, if we consider $Q_{D_{\pm }}\left(R\right)$ to represent the spectrum (wave) distribution within the range of distance R, we can consider that mass depends on the partial entropy $S_{D_{\pm }}\left(R\right)$, the spectrum distribution $Q_{D_{\pm }}\left(R\right)$ (or division $D_{\pm }\left(R\right)$) within the range R, and the constants G, ${\xi }^g$, and ${\lambda }_1$. In other words, mass can be considered to depend on the partial entropy and spectrum (waves). Mass may consider to be generated depending entropy and waves.

5.2. Possibility That the Existence of New Forces

The constants, variables, and functions in the above equations (23), that is $V_{D_{\pm }}(x,k)$, and (110), that is $V_{D_{\pm }}^{\prime }(x,k)$, are appropriately selected within the range of conditions, $V_{D_{\pm }}(x,k)$ is interpreted as gravitational potential, and $V_{D_{\pm }}^{\prime }(x,k)$ is interpreted as gravitational acceleration, conforming to gravity theory. However, if we consider carefully, the constants, variables, and functions in the above equations can be arbitrarily selected within the range of conditions, so these may be applicable to forces other than gravity and Coulomb force. By choosing the constants in the equation $V_{D_{\pm }}^{\prime }(x,k)$ appropriately, it may be possible to represent weak and strong force. Furthermore, there exists the possibility of expansion and the existence of new forces that are different from the conventional force. Therefore, it is possible that there exists many new forces. Namely, the following suggestion could be considered the possibility that there exists many new potential and acceleration :

Suggestion 5.1. 

Possibility that there exists many new forces (1), Planck-type.

Let $n\ge 0$ be a real number, m be a weight (mass) and R be a relation (distance). There exists countable numbers of potential $V_{D_{+}}(R,G_n)$ and a acceleration $V_{D_{+}}^{\prime }(R,G_n)$ such that the following conditions are satisfied:

• there exists constants $G_n$, ${\xi }_n$, ${\mu }_{1n}$, ${\lambda }_{1n}$ and a function ${\mu }_n\left(R\right)$ such that the following equations are satisfied :

  $$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{+}}(R,G_n)& =-{\displaystyle \frac{G_{n}m}{R\pm {\lambda }_{1n}m}}(1-exp(-{\xi }_n\int {\mu }_n\left(R\right)dR\pm {\mu }_{1n})),\hfill \end{array}\hfill \end{array}$$

  (154)

  $$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{+}}^{\prime }(R,G_n)& ={\displaystyle \frac{G_{n}m}{{(R\pm {\lambda }_{1n}m)}^2}}\left(1-exp(-{\xi }_n\int {\mu }_n\left(R\right)dR\pm {\mu }_{1n})\right)\hfill \\ & -{\displaystyle \frac{G_{n}m{\xi }_n{\mu }_n\left(R\right)}{R\pm {\lambda }_{1n}m}}exp(-{\xi }_n\int {\mu }_n\left(R\right)\pm {\mu }_{1n}),\hfill \end{array}\hfill \end{array}$$

  (155)
  where $G_n⪈0$, ${\xi }_n⪈0$, ${\mu }_{1n}\ge 0$, ${\lambda }_{1n}\ge 0$, $m>1$, $R>1$ and ${\mu }_n\left(R\right)>0$.

Namely, it is possible that there exists many new forces. Note that these description above assumed that assumptions (2.3) and (3.1). □

Similarly, for potentials $V_{D_{-}}(R,G_n)$ and accelerations $V_{D_{-}}^{\prime }(R,G_n)$, we can describe as follows :

Suggestion 5.2. 

Possibility that there exists many new forces (2), Yukawa-type.

Let $n\ge 0$ be a real number, m be a weight (mass) and R be a relation (distance). There exists countable numbers of potential $V_{D_{-}}(R,G_n)$ and a acceleration $V_{D_{-}}^{\prime }(R,G_n)$ such that the following conditions are satisfied:

• there exists constants $G_n$, ${\xi }_n$, ${\mu }_{1n}$, ${\lambda }_{1n}$ and a function ${\mu }_n\left(R\right)$ such that the following equations are satisfied :

  $$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{-}}(R,G_n)& =-{\displaystyle \frac{G_{n}m}{R\pm {\lambda }_{1n}m}}(1+exp(-{\xi }_n\int {\mu }_n\left(R\right)dR\pm {\mu }_{1n})),\hfill \end{array}\hfill \end{array}$$

  (156)

  $$\begin{array}{ccc}& & \begin{array}{cc}\hfill V_{D_{-}}^{\prime }(R,G_n)& ={\displaystyle \frac{G_{n}m}{{(R\pm {\lambda }_{1n}m)}^2}}\left(1+exp(-{\xi }_n\int {\mu }_n\left(R\right)dR\pm {\mu }_{1n})\right)\hfill \\ & +{\displaystyle \frac{G_{n}m{\xi }_n{\mu }_n\left(R\right)}{R\pm {\lambda }_{1n}m}}exp(-{\xi }_n\int {\mu }_n\left(R\right)\pm {\mu }_{1n}),\hfill \end{array}\hfill \end{array}$$

  (157)
  where $G_n⪈0$, ${\xi }_n⪈0$, ${\mu }_{1n}\ge 0$, ${\lambda }_{1n}\ge 0$, $m>1$, $R>1$ and ${\mu }_n\left(R\right)>0$.

Namely, it is possible that there exists many new forces. Note that these description above assumed that assumptions (4.2) and (4.3). □

Gravitational acceleration G and Coulomb’s constant $k_e$ may just simply be some of the coefficients related to forces that humans can currently sense throughout the universe. Instead of asking why there are 4-forces, we should ask why humans are primarily only able to sense 4-forces.

5.3. Possibility That Fluctuating of the Constant G

As mentioned above, if we consider that there are many forces, then we can assume that there will be many variations in the constants. If the changes (differences) in the constants are small for the same variable, the constants will appear to be fluctuating. Furthermore, gravitational constant G can be consider of as being determined by generalized entropy $S_{D_{\pm }}(G,R)$, the partition $D_{\pm }\left(R\right)$ and the partial entropy $S_{D_{\pm }}\left(R\right)$ partitioned by $D_{\pm }\left(R\right)$ (or the distribution $\pm \xi R/Q_{D_{\pm }}\left(R\right)$). Namely, generalized entropy $S_{D_{\pm }}(G,R)$ is represented as follows :

$$\begin{array}{c}\hfill S_{D_{\pm }}(R,G)=G·D_{\pm }\left(R\right)·S_{D_{\pm }}\left(R\right)=G{\displaystyle \frac{\pm \xi R}{Q_{D_{\pm }}\left(R\right)}}{S}_{D_{\pm }}\left(R\right).\end{array}$$

(158)

Therefore, gravitational constant G is represented as follows :

$$\begin{array}{c}\hfill G={\displaystyle \frac{S_{\pm }(R,G)}{D_{\pm }\left(R\right)·S_{D_{\pm }}\left(R\right)}}={\displaystyle \frac{S_{D_{\pm }}(R,G)}{S_{D_{\pm }}\left(R\right)}}·{\displaystyle \frac{Q_{D_{\pm }}\left(R\right)}{\pm \xi R}}.\end{array}$$

(159)

In other words, it is possible that gravitational constant G can fluctuate if entropy changes.

6. Conclusion

6.1. Possibility That Gravity Depending on Entropy

The idea behind Planck’s radiation formula is to apply the number of cases of partition by resonators to entropy. This idea is similar to the logistics function of a dynamical system. (Planck[1], Fujino [27]) Applying these, we treated the division of entropy as a non-minimal function $D_{+}\left(x\right)$, and derived potential $V_{D_{+}}(x,k)$ and acceleration $V_{D_{+}}^{\prime }(x,k)$. Therefore, we assumed that generalized entropy $D_{+}(x,k)$ can be represented as a second-degree polynomial, and potential $V_{D_{+}}(x,k)$ is defined as the inverse of $S_{D_{+}}\left(x\right)$. As a result, each variable and constant used in potential $V_{D_{+}}(x,k)$ and acceleration $V_{D_{+}}^{\prime }(x,k)$ is interpreted as in terms of gravity, and mass is defined as the inverse of the quadratic coefficient term of $S_{D_{+}}(x,k)$, that is, $1/{\lambda }_2$. The constant ${\lambda }_1$ is the the first-order coefficient of approximated generalized entropy ${\lambda }_2{x}^2+{\lambda }_{1}x$. In other words, gravitational acceleration changes depending on coefficients of approximated generalized entropy . In addition, the constants ${\mu }_2$ and ${\mu }_1$ are defined as coefficients of generalized partial entropy or distribution function $Q_{\pm }$. In other words, the inverse of the second-order part ${\lambda }_2^g$ of the second-order approximation of generalized entropy is considered to be mass. The first-order part ${\lambda }_1^g$ is left unchanged. The generalized entropy $S_{D_{+}}(R,G)$ is determined using mass m, distance(radius) R of the range under consideration, and the correction factor ${\lambda }_1^g$. The description on this article, it is assumed that the assumption 2.3, 3.1 and the existence of entropy-dependent constants $\xi ,{\lambda }_2,{\lambda }_1,{\mu }_2$, and ${\mu }_1$ that control gravity and the velocity of galaxies. We proposed the following conclusions :

• If distance R is small enough, hence gravitational acceleration $V_{D_{+}}^{\prime }(R,G)$ becomes 2-states with finite constants depend on constants $\xi ,{\lambda }_1^g,{\mu }_1^g$ and ${\mu }_2^g$. Depending on the value of ${\mu }_1^g$ and ${\lambda }_1^g$, the value of $V_{D_{+}}^{\prime }(R,G)$ can be positive or negative. If the constant ${\lambda }_1^g\to 0$, then gravitational acceleration $V_{D_{+}}^{\prime }(R,G)$ becomes $\pm \infty$. If the constant ${\lambda }_1^g\to \infty$, then gravitational acceleration $V_{D_{+}}^{\prime }(R,G)$ becomes 0. Therefore, it is possible that gravity have 5-states within distance R is small enough. Among the 5-states, there may exist anti-gravity, which is the opposite of Newton’s gravity. (Possibility existence of anti-gravity) Furthermore, using the equation for potential derived from entropy, within small distance, it may be possible to treat gravitational potential and Coulomb potential in the same way by appropriately choosing some constants. Similarly, the same suggestion can be made for gravitational acceleration and Coulomb’s law (electric field).
• At distance large enough to be within the size of the universe, gravity follows the adjusted inverse square law. Within this distance, the rotation speed of the galaxy v follows gravitational constant G, mass $m=1/{\lambda }_2^g$ and constants ${\xi }^g,{\mu }_2^g$ and ${\mu }_1^g$ which depend on entropy. Besides, the rotation speed of the galaxy v does not little depend on its radius R, (the galaxy rotation curve problem). Even without assuming dark matter, the problem of the rotation speed of the galaxy may be explained by the concept of entropy. This does not mean denying dark matter. The new constants ${\mu }_1^g$ and ${\mu }_2^g$ proposed in this paper, we may represent some kind of virtual mass.
• At large distance, gravity follows adjusted inverse square law. Comparing to conventional gravity g, gravitational acceleration ${\tilde{g}}_{\pm }$ towards the center of rotation becomes slightly weaker or stronger. This means that gravitational acceleration towards the center of a rotating substance can be slightly changed at distance. (The Pioneer Anomaly)

From the above description, it is possible there exists some constants $\xi ,{\lambda }_2,{\lambda }_1,{\mu }_2$ and ${\mu }_1$ which depend on entropy that controls gravity and the speed of the galaxy. Besides, it is consider to apply to velocities over short distances, such as electrons in atomic nuclei.

6.2. Interpretation of Yukawa-Type Potential by Negative Partial Entropy

By defining $V_{D_{-}}(x,k)$ and acceleration $V_{D_{-}}^{\prime }(x,k)$, it is also consider to be related to Yukawa-type potential and negative generalized partial entropy. Therefore, particle physics may be related to entropy. It may be suggested that there exists 11-types of acceleration related to gravitational acceleration g, such as ${\overline{g}}_{\pm },{\widehat{g}}_{\pm },{\tilde{g}}_{\pm },g_{\pm }^{sp}$, $g_{\pm }^{wp}$ and g. Using these forces, we attempted to compare that the ratio of the size of the fundamental 4-forces of nature (strong force, electromagnetic force, weak force and gravity) with strong force being 1. It showed that strong proximity force $g_{+}^{sp}$ can be regarded as strong force, weak proximity force $g_{-}^{wp}$ as weak force, adjusted gravity ${\tilde{g}}_{\pm }$ as gravity and expanded electromagnetic force ${\widehat{E}}_{+}$ or ${\overline{E}}_{-}$ as electromagnetic force. Moreover, it described that possibility mass generation by entropy, the existence of new forces and fluctuating of the constant G. In consequence, gravity may depended on entropy.

6.3. Integration of Thermodynamics, Quantum, Gravity and Ecology by Entropy

By combining concepts of the logistic function (dynamical system), Boltzmann’s entropy and Planck’s quantum, we could obtain expanded gravity. Namely, by developing the concept of the logistics function and combining it with entropy and Planck’s ideas, we derived that potentials $V_{D_{\pm }}(x,k)$ and accelerations $V_{D_{\pm }}^{\prime }(x,k)$. Since the nonlinear behavior obtained from the logistic function is non-Newtonian mechanics, Newtonian mechanics, including the theory of gravity, may be included in non-Newtonian mechanics. The concept of logistics function is applied to ecology like population theory and the evolution of life. It is also known that the concept of entropy was established by Clausius and related to quantum theory by Planck.[1,27] And it is consider that entropy is related to the concept of the logistic function.[27] Furthermore, the concept of the logistic function is applied to population theory, the evolution of life and ecology. Therefore, it is consider that entropy is related to ecology.[15,27] This paper argues that the concept of entropy is related to gravity theory. These findings suggest that by combining the concepts of entropy and the logistic function, it may be possible to understand the evolution of the universe in the same way as the evolution of life. Thus, it is consider that thermodynamics, quantum (particle), gravity, electromagnetic and ecology (biology) can be unified through the concept of entropy.

$$\begin{array}{c}\hfill \\ & ThermodynamicsEcology\left(Biology\right)& \\ & \searrow \nwarrow \swarrow \nearrow & \\ & Entropy& \\ & \swarrow \nearrow \downarrow \uparrow \searrow \nwarrow & \\ & QuantumGravityElectromagnetic& \\ & \left(Particle\right)& \end{array}$$

We hope that the concept of entropy explain more and provide new perspectives.