Viscous cosmologies in scalar-tensor theories for Kasner type metrics
General Relativity and Quantum Cosmology
2009-10-31 v1 Astrophysics
High Energy Physics - Theory
Abstract
In a viscous Bianchi type I metric of the Kasner form, it is well known that it is not possible to describe an anisotropic physical model of the universe, which satisfies the second law of thermodynamics and the dominant energy condition (DEC) in Einstein's theory of gravity. We examine this problem in scalar-tensor theories of gravity. In this theory we show that it is possible to describe the growth of entropy, keeping the thermodynamics and the dominant energy condition.
Cite
@article{arxiv.gr-qc/0011027,
title = {Viscous cosmologies in scalar-tensor theories for Kasner type metrics},
author = {M. Cataldo and S. del Campo and P. Salgado},
journal= {arXiv preprint arXiv:gr-qc/0011027},
year = {2009}
}
Comments
6 pages, Latex, accepted in Phys. Rev. D