Is The Internal Entropy of F(R)-Gravity Really An Entropy?

被引：0
作者：
Bohuslav Matouš [1 ]
机构：
[1] Observatory and Planetarium in Teplice, Koperníkova 3062, Teplice
来源：
International Journal of Theoretical Physics | / 64卷 / 4期
关键词：
F(R)-Gravity; Modified theories of gravity; Theory of elasticity; Thermodynamics of gravity;
D O I：
10.1007/s10773-025-05957-z
中图分类号：
学科分类号：
摘要：
This paper connects two methods for finding the functional of entropy in F(R)-Gravity: Padmanabhan’s and Hammad’s. The resulting approach is simple to follow and yields the expected entropy functional. This functional can be separated into two parts. The part unknown in General Relativity is identified with internally developed entropy. This paper points on incompatibility between the internal entropy found from the entropy functional and the entropy found using conventional approach from equations of motion. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2025.
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