Dark Energy Scenario in Metric f(R) Formalism

Autor:	Shivdas D. Katore, S. P. Hatkar, P. S. Dudhe
Rok vydání:	2019
Předmět:	Chaplygin gas Physics 010308 nuclear & particles physics General Physics and Astronomy Volume viscosity 01 natural sciences Exponential function General Relativity and Quantum Cosmology Formalism (philosophy of mathematics) symbols.namesake Functional Relationship Tachyon Friedmann–Lemaître–Robertson–Walker metric 0103 physical sciences symbols Dark energy 010306 general physics Mathematical physics
Zdroj:	Foundations of Physics. 49:1067-1085
ISSN:	1572-9516 0015-9018
DOI:	10.1007/s10701-019-00302-x
Popis:	Friedmann–Robertson–Walker (FRW) space–time with bulk viscosity in the context of f(R) gravity is considered. The field equations are solved for the Power and Exponential volumetric expansion. Two types of functional relationship i.e. f(R) = R + bRm and $$ \,f(R) = R - \frac{{\lambda^{4} }}{R} $$ are investigated. The Phantom, Chaplygin gas and Tachyon fields are discussed. It is observed that the universe is open and inflationary.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::26621d1a3f93abdc1b42e8849ad41b3e https://doi.org/10.1007/s10701-019-00302-x Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.