Preprint Article Version 1 This version is not peer-reviewed

Generalization of Nambu-Hamilton Equation and Extension of Nambu-Poisson Bracket to Superspace

Version 1 : Received: 17 September 2018 / Approved: 18 September 2018 / Online: 18 September 2018 (13:39:13 CEST)

A peer-reviewed article of this Preprint also exists.

Abramov, V. Generalization of Nambu–Hamilton Equation and Extension of Nambu–Poisson Bracket to Superspace. Universe 2018, 4, 106. Abramov, V. Generalization of Nambu–Hamilton Equation and Extension of Nambu–Poisson Bracket to Superspace. Universe 2018, 4, 106.

Journal reference: Universe 2018, 4, 106
DOI: 10.3390/universe4100106

Abstract

We propose a generalization of Nambu-Hamilton equation in superspace $\mathbb R^{3|2}$ with three real and two Grassmann coordinates. We construct the even degree vector field in the superspace $\mathbb R^{3|2}$ by means of the right-hand sides of proposed generalization of Nambu-Hamilton equation and show that this vector field is divergenceless in superspace. Then we show that our generalization of Nambu-Hamilton equation in superspace leads to family of ternary brackets of even degree functions defined with the help of Berezinian. This family of ternary brackets is parametrized by the infinite dimensional group of invertible second order matrices, whose entries are differentiable functions on the space $\mathbb R^{3}$. We study the structure of ternary bracket in a more general case of a superspace $\mathbb R^{n|2}$ with $n$ real and two Grassmann coordinates and show that for any invertible second order functional matrix it splits into the sum of two ternary brackets, where one is usual Nambu-Poisson bracket, extended in a natural way to even degree functions in a superspace $\mathbb R^{n|2}$, and the second is a new ternary bracket, which we call $\Psi$-bracket, where $\Psi$ can be identified with invertible second order functional matrix. We prove that ternary $\Psi$-bracket as well as the whole ternary bracket (the sum of $\Psi$-bracket with usual Nambu-Poisson bracket) is totally skew-symmetric, satisfies the Leibniz rule and the Filippov-Jacobi identity (Fundamental Identity).

Subject Areas

Nambu-Hamilton equation; Nambu-Poisson bracket; superspace; Filippov-Jacobi identity; Nambu-Hamilton mechanics

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