Nonlinear diffusion in relativistic kinetic theory

Fuente: arXiv
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Main Author: Calogero, Simone
Format: Preprint
Published: 2025
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author Calogero, Simone
author_facet Calogero, Simone
contents A nonlinear Lorentz invariant kinetic diffusion equation is introduced, which is consistent with the conservation laws of particles number, energy and momentum. The equilibrium solution converges to the Maxwellian density in the Newtonian limit, but it is not given by the Jüttner distribution commonly employed in relativistic kinetic theory. The nonlinear kinetic diffusion equation on a general Lorentzian manifold is consistent with the contracted Bianchi identities and therefore can be coupled to the Einstein equations of general relativity.
format Preprint
id arxiv_https___arxiv_org_abs_2508_20147
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Nonlinear diffusion in relativistic kinetic theory
Calogero, Simone
General Relativity and Quantum Cosmology
Mathematical Physics
A nonlinear Lorentz invariant kinetic diffusion equation is introduced, which is consistent with the conservation laws of particles number, energy and momentum. The equilibrium solution converges to the Maxwellian density in the Newtonian limit, but it is not given by the Jüttner distribution commonly employed in relativistic kinetic theory. The nonlinear kinetic diffusion equation on a general Lorentzian manifold is consistent with the contracted Bianchi identities and therefore can be coupled to the Einstein equations of general relativity.
title Nonlinear diffusion in relativistic kinetic theory
topic General Relativity and Quantum Cosmology
Mathematical Physics
url https://arxiv.org/abs/2508.20147