Particle creation in the context of the emergent universe

Autor:	M. Merad, B. Hamil, Tolga Birkandan
Rok vydání:	2021
Předmět:	Physics media_common.quotation_subject General Physics and Astronomy Context (language use) Conformal map Universe Education symbols.namesake Bogoliubov transformation Theoretical physics Singularity De Sitter universe symbols Einstein Klein–Gordon equation media_common
Zdroj:	Revista Mexicana de Física. 67:219-225
ISSN:	2683-2224 0035-001X
DOI:	10.31349/revmexfis.67.219
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::36002542bf00288aaf38149de1a5b69c https://doi.org/10.31349/revmexfis.67.219 Zobrazit plný text záznamu