Effective fluid mixture of tensor-multi-scalar gravity
General Relativity and Quantum Cosmology
2022-11-09 v1
Abstract
We apply to tensor-multi-scalar gravity the effective fluid analysis based on the representation of the gravitational scalar field as a dissipative effective fluid. This generalization poses new challenges as the effective fluid is now a complicated mixture of individual fluids mutually coupled to each other and many reference frames are possible for its description. They are all legitimate, although not all convenient for specific problems, and they give rise to different physical interpretations. Two of these frames are highlighted.
Cite
@article{arxiv.2211.03958,
title = {Effective fluid mixture of tensor-multi-scalar gravity},
author = {Marcello Miranda and Pierre-Antoine Graham and Valerio Faraoni},
journal= {arXiv preprint arXiv:2211.03958},
year = {2022}
}
Comments
10 pages, latex