First law of thermodynamics and Friedmann-like equations in braneworld cosmology

Xian-Hui Ge

doi:10.1016/j.physletb.2007.05.055

First law of thermodynamics and Friedmann-like equations in braneworld cosmology

High Energy Physics - Theory 2008-11-26 v3 Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology

Authors: Xian-Hui Ge

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Abstract

We derive the Friedmann-like equations in braneworld cosmology by imposing the first law of thermodynamics and Bekenstein's area-entropy formula on the apparent horizon of a Friedmann-Roberston-Walker universe in both Randall-Sundrum II gravity and Dvali-Gabadadze-Porrati gravity models. Israel's boundary condition plays an important role in our calculations in both cases, besides the first law of thermodynamics and Bekenstein's area-entropy formula. The results indicate that thermodynamics on the brane world knows the behaviors of gravity.

Keywords

braneworld cosmology first law of thermodynamics Friedmann-like equations Randall-Sundrum II Dvali-Gabadadze-Porrati apparent horizon Israel boundary condition

Cite

@article{arxiv.hep-th/0703253,
  title  = {First law of thermodynamics and Friedmann-like equations in braneworld cosmology},
  author = {Xian-Hui Ge},
  journal= {arXiv preprint arXiv:hep-th/0703253},
  year   = {2008}
}

Comments

12 pages, no figures,Version 3; minor improvements

First law of thermodynamics and Friedmann-like equations in braneworld cosmology

Abstract

Keywords

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