Particle creation in the context of the emergent universe

• B. Hamil ^[1] ; M. Merad ^[2] ; T. Birkandan ^[3]
  1. [1] Université Hassiba Benbouali, Chlef, Algeria
  2. [2] Université de Oum El Bouaghi, Algeria
  3. [3] Istanbul Technical University, Turkey

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• Localización: Revista Mexicana de Física, ISSN-e 0035-001X, Vol. 67, Nº. 2, 2021, págs. 219-225
• Idioma: inglés
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• Resumen

  • 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.