Scalar Field Cosmology in f(R,T) Gravity with Lambda

Aygun S., Aktas C., Sahoo P. K., Bishi B. K.

GRAVITATION & COSMOLOGY, vol.24, no.3, pp.302-307, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 24 Issue: 3
  • Publication Date: 2018
  • Doi Number: 10.1134/s0202289318030039
  • Journal Name: GRAVITATION & COSMOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.302-307
  • Çanakkale Onsekiz Mart University Affiliated: Yes

Abstract

We study the behavior of cosmological parameters, massive and massless scalar fields (normal or phantom) with a scalar potential in f(R, T) theory of gravity for a flat Friedmann-Robertson-Walker (FRW) universe. To get exact solutions to the modified field equations, we use the f(R, T) - R + 2f(T) model by Harko et al. (T. Harko et al., Phys. Rev. D 84, 024020 (2011)), where R is the Ricci scalar and T is the trace of the energy momentum tensor. Our cosmological parameter solutions agree with the recent observational data. Finally, we discuss our results with various graphics.