Particles and gravitons creation after inflation from a 5D vacuum

Дата и время публикации : 2011-03-11T22:35:23Z

Авторы публикации и институты :
Mariano Anabitarte (Mar del Plata University, IFIMAR – CONICET)
Mauricio Bellini (Mar del Plata University, IFIMAR – CONICET)

Ссылка на журнал-издание: Eur. Phys. J. Plus 126: 90 (2011)
Коментарии к cтатье: To be published in Eur. Phys. J. Plus
Первичная категория: gr-qc

Все категории : gr-qc, astro-ph.CO, hep-ph, hep-th

Краткий обзор статьи: We use the Bogoliubov formalism to study both, particles and gravitons creation at the reheating epoch, after a phase transition from inflation to a radiation dominated universe. The modes of the inflaton field fluctuations and the scalar fluctuations of the metric at the end of inflation are obtained by using a recently introduced formalism related to the Induced Matter theory of gravity. The interesting result is that the number of created particles is bigger than $10^{90}$ on cosmological scales. Furthermore, the number of gravitons are nearly $10^{-17}$ times smaller than the number of created particles. In both cases, these numbers rapidly increases on cosmological scales.

Category: Physics