Particle creation in the context of the emergent universe

Authors

  • B. Hamil Chlef university
  • M. Merad
  • T. Birkandan

DOI:

https://doi.org/10.31349/RevMexFis.67.219

Keywords:

Schwinger effect, Emergent universe scenarios, Klein-Gordon equation, Bogoliubov transformation.

Abstract

We study the mechanism of particle creation in the context of the emergent universe (EU) scenario which is privileged by certain important characteristics such as the absence of time-like singularity. EU asymptotically coincides with an Einstein static model in the infinite past and it approaches to a de Sitter expansion phase at late times. By introducing the conformal time, we obtain the solution of the Klein-Gordon equation and by applying the "in" and "out" states method, the total number of produced particles and the total energy associated with them are determined.

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Published

2021-07-15

How to Cite

[1]
B. Hamil, M. Merad, and T. Birkandan, “Particle creation in the context of the emergent universe”, Rev. Mex. Fís., vol. 67, no. 2 Mar-Apr, pp. 219–225, Jul. 2021.

Issue

Vol. 67 No. 2 Mar-Apr (2021): Revista Mexicana de Física

Section

07 Gravitation, Mathematical Physics and Field Theory

License

Copyright (c) 2021 Bilel Hamil, Mahmoud Merad, Tolga Birkandan

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Authors retain copyright and grant the Revista Mexicana de Física right of first publication with the work simultaneously licensed under a CC BY-NC-ND 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.