Anisotropic Universe in f (G, T) Gravity

被引:12
|
作者
Shamir, M. Farasat [1 ]
机构
[1] Natl Univ Comp & Emerging Sci, Dept Sci & Humanities, Lahore Campus, Lahore, Pakistan
关键词
GAUSS-BONNET GRAVITY; DARK ENERGY; F(G) GRAVITY; COSMOLOGICAL MODELS; GENERAL-RELATIVITY; INFLATION; STABILITY; DYNAMICS;
D O I
10.1155/2017/6378904
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
This paper is devoted to investigating the recently introduced f (G, T) theory of gravity, where G is the Gauss-Bonnet term and.. is the trace of the energy-momentum tensor. For this purpose, anisotropic background is chosen and a power law f (G, T) gravity model is used to find the exact solutions of field equations. In particular, a general solution is obtained which is further used to reconstruct some important solutions in cosmological contexts. The physical quantities like energy density, pressure, and equation of state parameter are calculated. A Starobinsky-like f(2) (G, T) model is proposed which is used to analyze the behavior of universe for different values of equation of state parameter. It is concluded that presence of term T in the bivariate function f (G, T) may give many cosmologically important solutions of the field equations.
引用
收藏
页数:10
相关论文
共 50 条
  • [41] A study on the role of f(G) gravity on the emergent universe
    Chattopadhyay, Surajit
    Ghosh, Rahul
    ASTROPHYSICS AND SPACE SCIENCE, 2013, 345 (01) : 11 - 15
  • [42] Anisotropic universe models with magnetized strange quark matter in f(R) gravity theory
    Ozdemir, Onur
    Aktas, Can
    MODERN PHYSICS LETTERS A, 2020, 35 (14)
  • [43] Behaviors of dark energy and mesonic scalar field for anisotropic universe in f (R) gravity
    Aktas, Can
    Aygun, Sezgin
    Yilmaz, Ihsan
    PHYSICS LETTERS B, 2012, 707 (02) : 237 - 242
  • [44] A cyclic universe with varying cosmological constant in f(R, T) gravity
    Ahmed, Nasr
    Alamri, Sultan Z.
    CANADIAN JOURNAL OF PHYSICS, 2019, 97 (10) : 1075 - 1082
  • [45] Hybrid star within f ( G ) gravity
    Rej, Pramit
    CHINESE JOURNAL OF PHYSICS, 2024, 89 : 174 - 186
  • [46] Energy bounds in f(R,T) gravity with anisotropic backgrounds
    Malik, Adnan
    INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2024, 21 (14)
  • [47] The constrained accelerating universe in f (R, T) gravity
    Singh, J. K.
    Balhara, H.
    Shaily
    Singh, P.
    ASTRONOMY AND COMPUTING, 2024, 46
  • [48] Anisotropic stellar structures in the f(T) theory of gravity with quintessence via embedding approach
    Ditta, Allah
    Ahmad, Mushtaq
    Hussain, Ibrar
    Mustafa, G.
    CHINESE PHYSICS C, 2021, 45 (04)
  • [49] Dynamics of an Anisotropic Universe in f(R, T) Theory
    Mishra, B.
    Tarai, Sankarsan
    Tripathy, S. K.
    ADVANCES IN HIGH ENERGY PHYSICS, 2016, 2016
  • [50] Connecting early and late universe by f(R) gravity
    Capozziello, Salvatore
    De laurentis, Mariafelicia
    Luongo, Orlando
    INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2015, 24 (04):