Thermodynamics of f (R) theories of gravity

被引：4
作者：
Peralta, C. D. [1 ]
Joras, S. E. [2 ]
机构：
[1] Univ Antioquia, Inst Fis, Medellin 1226, Colombia
[2] Univ Fed Rio de Janeiro, Inst Fis, Cx Postal 68528, BR-21941972 Rio De Janeiro, RJ, Brazil
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2020年 / 06期
关键词：
alternatives to inflation; modified gravity; MODELS;
D O I：
10.1088/1475-7516/2020/06/053
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
This paper starts from a toy model for inflation in a class of modified theories of gravity in the metric formalism. Instead of the standard procedure - assuming a non-linear Lagrangian f(R) in the Jordan frame - we start from a simple phi(2) potential in the Einstein frame and investigate the corresponding f (R) in the former picture. The addition of an adhoc Cosmological Constant in the Einstein frame leads to a Thermodynamical interpretation of this physical system, which allows further insight on its (meta)stability and evolution.
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收藏
页数：14
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