Journal
COMMUNICATIONS IN THEORETICAL PHYSICS
Volume 74, Issue 8, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1572-9494/ac7b77
Keywords
thermodynamics; f(R) theories of gravity; matter-geometry coupling
Categories
Funding
- National Natural Science Foundation of China [12165021]
- Science Technology Department of Yunnan Province-Yunnan University [2019FY003005]
Ask authors/readers for more resources
This paper explores the thermodynamics of the Friedmann-Lemaitre-Robertson-Walker universe in f(R) theories of gravity with arbitrary matter-geometry coupling, confirming the equivalence between modified Friedmann equations and the first law of thermodynamics. Laws of thermodynamics are obtained and validated through observational results.
In this paper, the thermodynamics of the Friedmann-Lemaitre-Robertson-Walker universe have been explored in f(R) theories of gravity with arbitrary matter-geometry coupling. The equivalence between the modified Friedmann equations with any spatial curvature and the first law of thermodynamics is confirmed, where the assumption of the entropy plays a crucial role. Then laws of thermodynamics in our considering case are obtained. They can reduce to the ones given in Einstein's general theory of relativity under certain conditions. Moreover, a particular model is investigated through the obtained generalized second law of thermodynamics with observational results of cosmographic parameters.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available