Rip cosmological models in extended symmetric teleparallel gravity

Autor:	Sunil Kumar Tripathy, Siddheshwar Kadam, Laxmipriya Pati, Bivudutta Mishra
Rok vydání:	2021
Předmět:	General Relativity and Quantum Cosmology Space and Planetary Science FOS: Physical sciences Astronomy and Astrophysics General Relativity and Quantum Cosmology (gr-qc) Computer Science::Computational Geometry Computer Science::Information Theory
DOI:	10.48550/arxiv.2112.00271
Popis:	In this paper we have investigated some rip cosmological models in an extended symmetric teleparallel gravity theory. We consider the form $f(Q,T)=aQ^m+bT$ in the Einstein-Hilbert action and expressed the field equations and the dynamical parameters in terms of the non-metricity $Q$. Three rip models such as Little Rip, Big Rip and Pseudo Rip are presented. The energy conditions and the cosmographic parameters are derived and analysed for all these models. Comment: 14 pages, 18 figures, Accepted for publication in Physics of the Dark Universe
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7fdd948de3ffacad528efc8a852d3f62 Zobrazit plný text záznamu