Temperature in relativistic fluids
General Relativity and Quantum Cosmology
2023-04-26 v2 High Energy Physics - Theory
Abstract
For static matter in a gravitational field, different conventions for equilibrium local temperature exist in the classic physics literature. We illustrate the difference between two popular conventions using black-body radiation in a spherically symmetric gravitational potential. Equilibrium temperatures defined by the "Landau frame" or "Eckart frame" prescriptions most commonly used in relativistic fluid dynamics do not satisfy the statistical-mechanical relation .
Cite
@article{arxiv.2210.15605,
title = {Temperature in relativistic fluids},
author = {Pavel Kovtun},
journal= {arXiv preprint arXiv:2210.15605},
year = {2023}
}
Comments
14 pages, 3 figures. V2: Small clarifications, version accepted for publication in PRD