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Photon Decays in the Radiation-Dominated Universe: Scalar Electrodynamics

被引：0
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作者：
L. I. Tsaregorodtsev
V. V. Tsaregorodtseva
机构：
[1] Altay State Technical University,Department of Mathematics, Biysk Institute of Technology
来源：
General Relativity and Gravitation | 2004年 / 36卷
关键词：
Cosmology; Scalar electrodynamics; pair creation; Quantum fields in the curved space; radiation-dominated Universe; fields interaction in the curved space-time; photon decay; photon decay rate;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effect of the creation of an arbitrary number of massive pairs by a photon in the spatially flat model of the radiation-dominated Universe is considered. The process added-up probability is calculated within the framework of scalar quantum electrodynamics conformally related to the metric of a curved spacetime. The rate of photon decay in the radiation-dominated universe as well as the mean number of the created particles have been found. Comparison of the rate of the pair creation in the photon decays with the rate of the pair creation in the photon-photon collisions which take place in the Minkowski spacetime has been carried out. The estimates having been made show the number density of the particles created in the processes of the photon decays in the radiation-dominated Universe to be by a factor of 1030 higher than the number density of the particles created from the vacuum of the free scalar field by the gravitational background.
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页码：1679 / 1688
页数：9
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