Cosmological constant Λ in f(R, T) modified gravity

被引：36

作者：

Singh, Gyan Prakash ^{[1
]}

Bishi, Binaya Kumar ^{[1
]}

Sahoo, Pradyumn Kumar ^{[2
]}

机构：

[1] Visvesvaraya Natl Inst Technol, Dept Math, Nagpur 440010, Maharashtra, India

[2] Birla Inst Technol & Sci, Dept Math, Hyderabad Campus, Hyderabad 500078, Andhra Pradesh, India

来源：

INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS | 2016年 / 13卷 / 05期

关键词：

Bianchi type-III spacetime; f(R; T); gravity; cosmological constant; PROBE WMAP OBSERVATIONS; F R; FRW UNIVERSE; MODELS;

D O I：

10.1142/S0219887816500584

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper, we have studied the Bianchi type-III cosmological model in the presence of cosmological constant in the context of f(R, T) modified theory of gravity. Here, we have discussed two classes of f(R, T) gravity, i.e. f(R, T) = R + f(T) and f(R, T) = f(1)(R) + f(2)(T). In both classes, the modified field equations are solved by the relation expansion scalar theta that is proportional to shear scalar sigma which gives A = C-n, where A and C are metric potentials. Also we have discussed some physical and kinematical properties of the models.

引用

页数：17

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