Various dark energy models for variables G and Λ in f(R, T) modified theory
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Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
World Scientific Publ Co Pte Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In 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.
Açıklama
Anahtar Kelimeler
f(R, T) theory, FRW universe, dark energy, tachyon field, k-essence, quintessence
Kaynak
Modern Physics Letters A
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
34
Sayı
13
