Particle creation in the context of the emergent universe

Hamil B., Merad M., Birkandan T.

REVISTA MEXICANA DE FISICA, cilt.67, sa.2, ss.219-225, 2021 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 67 Konu: 2
  • Basım Tarihi: 2021
  • Doi Numarası: 10.31349/revmexfis.67.219
  • Sayfa Sayıları: ss.219-225


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.