Quasi-de Sitter inflation from generalized uncertainty principle

Autor:	M. Heydarzadeh, M. Mohsenzadeh, M. Abbasiyan-Motlaq, E. Yusofi
Rok vydání:	2022
Předmět:	Nuclear and High Energy Physics General Physics and Astronomy Astronomy and Astrophysics
Zdroj:	Modern Physics Letters A. 37
ISSN:	1793-6632 0217-7323
DOI:	10.1142/s0217732322501917
Popis:	In the early inflation period, due to the highest accessible energy, the quantum effects of gravity are essentially considerable and the generalized uncertainty principle (GUP) can be examined. In this paper, we first calculate the slow-roll parameter of the power-law inflation according to physical and co-moving momentum. Then, considering the two proposed algebras for the GUP, we show that considering a minimum length for corrections cannot satisfy the slow-roll condition and inflation, in this case, will not terminate gracefully. By simultaneously considering both minimum length and maximum momentum, inflation will terminate gracefully but it can never start from a pure de Sitter state and will necessarily start from a quasi-de Sitter state.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::518ab19ab09bbd4b27009976c9d15183 https://doi.org/10.1142/s0217732322501917 Zobrazit plný text záznamu