Non-metric fluid dynamics and cosmology on Finsler spacetimes
Abstract
We generalize the kinetic theory of fluids, in which the description of fluids is based on the geodesic motion of particles, to spacetimes modeled by Finsler geometry. Our results show that Finsler spacetimes are a suitable background for fluid dynamics and that the equation of motion for a collisionless fluid is given by the Liouville equation, as it is also the case for a metric background geometry. We finally apply this model to collisionless dust and a general fluid with cosmological symmetry and derive the corresponding equations of motion. It turns out that the equation of motion for a dust fluid is a simple generalization of the well-known Euler equations.
Keywords
Cite
@article{arxiv.1508.03304,
title = {Non-metric fluid dynamics and cosmology on Finsler spacetimes},
author = {Manuel Hohmann},
journal= {arXiv preprint arXiv:1508.03304},
year = {2016}
}
Comments
10 pages, no figures; to appear in the conference proceedings of the 9th Alexander Friedmann International Seminar, International Journal of Modern Physics: Conference Series, World Scientific Publishing Company