Preprint Article Version 2 Preserved in Portico This version is not peer-reviewed

On the Thermodynamics of Matter

Version 1 : Received: 23 February 2023 / Approved: 24 February 2023 / Online: 24 February 2023 (15:41:02 CET)
Version 2 : Received: 4 March 2023 / Approved: 6 March 2023 / Online: 6 March 2023 (14:06:38 CET)
Version 3 : Received: 7 September 2023 / Approved: 8 September 2023 / Online: 11 September 2023 (05:00:26 CEST)

How to cite: Kumar, N. On the Thermodynamics of Matter. Preprints 2023, 2023020427. Kumar, N. On the Thermodynamics of Matter. Preprints 2023, 2023020427.


The holographic principle states that the information about the volume of space is stored on its boundary. Assuming this holds, we can explain the aspects of gravity. It strongly seems that ”information” is a more fundamental entity than the structure of spacetime as used as basis in almost every gravity theory. In this paper, we present this connection between gravity and information. This naturally explains the four classical tests of gravity namely the gravitational redshift, the perihelion precession, the bending of light and the gravitational time delay. The spacetime need to be extended to 5D to explain gravity in this context. We also show that the second derivative of the radius of a null boundary(with respect to an affine parameter λ along the generator) that encloses matter obeying the null energy condition(NEC) cannot decrease. This can be applied to the event horizon of a black hole.


Extra Dimension; Thermodynamics and Gravity; Quantum Focusing; Null surfaces


Physical Sciences, Astronomy and Astrophysics

Comments (1)

Comment 1
Received: 6 March 2023
Commenter: Naman Kumar
Commenter's Conflict of Interests: Author
Comment: The following changes are made:

1. In Section 2 definitions and assumptions are made more clear. 

2. A new section 6 has been added to clarify the derivation of section 7.

3. The heading of section 7 is changed in favor of a better and clearer header.

4. Some references have been added.
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