Signature flip in deceleration parameter: A thermodynamic phase transition?

Autor: Duary, Tanima, Banerjee, Narayan, Dasgupta, Ananda
Rok vydání: 2023
Předmět:
Zdroj: Eur. Phys. J. C 83, 815 (2023)
Druh dokumentu: Working Paper
DOI: 10.1140/epjc/s10052-023-11995-w
Popis: Using the Hayward-Kodama temperature for the apparent horizon, it is found that matter content in the Universe is not thermodynamically stable, and the entry to the late accelerated expansion is actually a second order phase transition. The cosmological model used for the purpose is one that imitates the $\Lambda$CDM model, the favoured model for the present Universe.
Comment: Title has been changed
Databáze: arXiv
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