Resumo

HAMIL, B.; MERAD, M.  e  BIRKANDAN, T.. Particle creation in the context of the emergent universe. Rev. mex. fis. [online]. 2021, vol.67, n.2, pp.219-225.  Epub 16-Fev-2022. ISSN 0035-001X.  https://doi.org/10.31349/revmexfis.67.219.

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.

Palavras-chave : Schwinger effect; emergent universe scenarios; Klein-Gordon equation; bogoliubov transformation.

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