Scalar field as a perfect fluid: thermodynamics of minimally coupled scalars and Einstein frame scalar-tensor gravity

Autor:	Faraoni, Valerio, Giardino, Serena, Giusti, Andrea, Vanderwee, Robert
Rok vydání:	2022
Předmět:	General Relativity and Quantum Cosmology High Energy Physics - Theory
Druh dokumentu:	Working Paper
DOI:	10.1140/epjc/s10052-023-11186-7
Popis:	We revisit the analogy between a minimally coupled scalar field in general relativity and a perfect fluid, correcting previous identifications of effective temperature and chemical potential. This provides a useful complementary picture for the first-order thermodynamics of scalar-tensor gravity, paving the way for the Einstein frame formulation (which eluded previous attempts) and raises interesting questions to further develop the analogy. Comment: 19 pages, latex
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2208.04051 Zobrazit plný text záznamu View this record from Arxiv