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arXiv · 2003.07665

Casimir effect and Stefan-Boltzmann law at finite temperature in a Friedmann-Robertson-Walker universe

A. F. Santos·S. C. Ulhoa·Faqir C. Khanna
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Abstract

A spatially flat Friedmann-Robertson-Walker background with a general scale factor is considered. In this space-time, the energy-momentum tensor of the scalar field with a general curvature coupling parameter is obtained. Using the Thermo Field Dynamics (TFD) formalism the Stefan-Boltzmann law and the Casimir effect at finite temperature are calculated. The Casimir effect at zero temperature is also considered. The expansion of the universe changes these effects. A discussion of these modifications is presented.

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A. F. Santos, S. C. Ulhoa, Faqir C. Khanna. 2020-03-17. Casimir effect and Stefan-Boltzmann law at finite temperature in a Friedmann-Robertson-Walker universe. https://doi.org/10.1142/s0218271820500455

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