On gravitational Stefan-Boltzmann law and Casimir effect in FRW universe

被引：0
|
作者：
A. F. Santos
S. C. Ulhoa
E. P. Spaniol
Faqir C. Khanna
机构：
[1] Universidade Federal de Mato Grosso,Instituto de Física
[2] Universidade de Brasília,International Center of Physics, Instituto de Física
[3] Canadian Quantum Research Center,Department of Physics and Astronomy
[4] UDF Centro Universitário and Centro Universitário de Brasília UniCEUB,Physics Department, Theoretical Physics Institute
[5] University of Victoria,undefined
[6] University of Alberta,undefined
来源：
General Relativity and Gravitation | 2021年 / 53卷
关键词：
Finite temperature; TFD; Teleparallel gravity; Casimir effect; FRW universe;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Both Stefan-Boltzmann law and the Casimir effect, in a universe described by the FRW metric with zero curvature, are calculated. These effects are described by Thermo Field Dynamics (TFD). The gravitational energy-momentum tensor is defined in the context of Teleparallel Equivalent to General Relativity (TEGR). Each of the two effects gives a consistent prediction with what is observed on a cosmological scale. One of the effect establishes a minimum range for the deceleration parameter. While another leads to the conclusion that a possible cosmological constant has a very small order of magnitude.
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