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Effect of electromagnetic fields on the creation of scalar particles in a flat Robertson–Walker space-time

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Abstract

The influence of electromagnetic fields on the creation of scalar particles from vacuum in a flat Robertson–Walker space-time is studied. The Klein–Gordon equation with varying electric field and constant magnetic one is solved. The Bogoliubov transformation method is applied to calculate the pair creation probability and the number density of created particles. It is shown that the electric field amplifies the creation of scalar particles while the magnetic field minimizes it.

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Acknowledgements

The authors wish to thank the referees for their precious comments which greatly improved the paper. The work of S. Haouat is partially supported by Algerian Ministry of High Education and Scientific Research and ANDRU under the PNR project: COSMOGR (code: 8/u18/976, contract n∘ 28/04).

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Authors and Affiliations

  1. LPTh, Department of Physics, University of Jijel, BP 98, Ouled Aissa, Jijel, 18000, Algeria

    S. Haouat & R. Chekireb

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  1. S. Haouat
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  2. R. Chekireb
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Correspondence to S. Haouat.

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Haouat, S., Chekireb, R. Effect of electromagnetic fields on the creation of scalar particles in a flat Robertson–Walker space-time. Eur. Phys. J. C 72, 2034 (2012). https://doi.org/10.1140/epjc/s10052-012-2034-x

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  • DOI: https://doi.org/10.1140/epjc/s10052-012-2034-x

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