Inflation with F(T) Teleparallel Gravity

Autor:	Manas Chakrabortty, Nayem Sk, Susmita Sanyal, Abhik Kumar Sanyal
Rok vydání:	2021
Předmět:	Fluid Flow and Transfer Processes General Relativity and Quantum Cosmology Cosmology and Nongalactic Astrophysics (astro-ph.CO) General Physics and Astronomy FOS: Physical sciences Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics - Cosmology and Nongalactic Astrophysics
DOI:	10.48550/arxiv.2112.09609
Popis:	We study early universe with a particular form of F(T) Telleparallel gravity theory, in which inflation is driven by a scalar field. To ensure slow rollover, two different potentials are chosen in a manner, such that they remain almost flat for large initial value of the scalar field. Inflationary parameters show wonderful fit with the presently available Planck's data set. The energy scale of inflation is sub-Planckian and graceful exit from inflation is also administered. The chosen form of F(T) administers late-time cosmic acceleration too. In the process, unification of the early inflation with late-time acceleration is ensured. Unfortunately, a decelerated radiation dominated era is only possible with a different form of (quartic) potential, which being devoid of a flat section does not admit slow rollover. Comment: 21 pages, zero figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::059f715d2f08373e1841efc148a38664 Zobrazit plný text záznamu