Various dark energy models for variables G and Λ in f(R, T) modified theory

Aktaş, Can2025-01-272025-01-2720190217-73231793-6632https://doi.org/10.1142/S0217732319500986https://hdl.handle.net/20.500.12428/22114In this paper, we have researched tachyon field, k-essence and quintessence dark energy (DE) models for Friedmann-Robertson-Walker (FRW) universe with varying G and A in f (R, T) gravitation theory. The theory of f (R, T) is proposed by Harko et al. [Phys. Rev. D 84, 024020, 2011]. In this theory, R is the Ricci scalar and T is the trace of energy-momentum tensor. For the solutions of field equations, we have used linearly varying deceleration parameter (LVDP), the equation of state (EoS) and the ratio between A and Hubble parameter. Also, we have discussed some physical behavior of the models with various graphics.eninfo:eu-repo/semantics/closedAccessf(R, T) theoryFRW universedark energytachyon fieldk-essencequintessenceVarious dark energy models for variables G and Λ in f(R, T) modified theoryArticle341310.1142/S0217732319500986Q2WOS:0004668092000052-s2.0-85063254040Q2