Anisotropic Universe Models with Perfect Fluid and Scalar Field in f(R,T) Gravity - INSPIRE

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Anisotropic Universe Models with Perfect Fluid and Scalar Field in f(R,T) Gravity

Muhammad Sharif
(
- Punjab U.
)
,
Muhammad Zubair
(
- Punjab U.
)

2012

23 pages

Published in:

J.Phys.Soc.Jap. 81 (2012) 114005

e-Print:

1301.2251 [gr-qc]

DOI:

10.1143/JPSJ.81.114005

View in:

ADS Abstract Service

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Abstract: (Physical Society of Japan)

In this paper, we study the behavior of perfect fluid and massless scalar field for homogeneous and anisotropic Bianchi type I universe model in f(R,T) gravity, where R is the Ricci scalar and T is the trace of the energy-momentum tensor. We assume the variation law of mean Hubble parameter to obtain exact solutions of the modified field equations. The physical and kinematical quantities are discussed for both models in future evolution of the universe. We check the validity of null energy condition and conclude that our perfect fluid solution can behave like phantom model. Finally, we find that perfect fluid solutions correspond to massless scalar field models. SOURCE = Physical Society of Japan

Note:

23 pages, 13 figures

04.50.Kd
95.36.+x
04.20.Jb
f(R,T) gravity
Dark energy
Exact solutions
Massless scalar field
field theory: scalar: massless
solution: fluid
null-energy condition

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