This article is cited in 1 paper

Particle creation in cosmological space–time by a time-varying electric field

H. Rezki, S. Zaim

Laboratory of Physics of Radiation and its Interactions with Matter, Department of Physics, Faculty of Matter Sciences, University of Batna 1, Batna, Algeria

Abstract: We use the semiclassical approach to solve the Klein–Gordon and Dirac equations in the presence of a time-varying electric field. Our objective is to calculate the density of particle creation in a cosmological anisotropic Bianchi-I space–time. We demonstrate that when the electric interaction is proportional to the Ricci scalar of curved space–time, the distribution of particles subjected to the electric field transforms into a thermal state.

Keywords: cosmological space–time, Bogoliubov transformation, particle creation.

Received: 06.10.2023
Revised: 23.12.2023

DOI: 10.4213/tmf10622

 English version: Theoretical and Mathematical Physics, 2024, 219:2, 856–870

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