Cosmological model with variable deceleration parameter in f(R, T) modified gravity

被引:28
作者
Tiwari, Rishi Kumar [1 ]
Beesham, Aroonkumar [2 ]
Shukla, Bhupendra [1 ]
机构
[1] Pandit Shambunath Shukla Univ, Dept Math, Mpeb Colony, Shahdol 484001, Madhya Pradesh, India
[2] Univ Zululand, Dept Math Sci, ZA-3886 Kwa Dlangezwa, South Africa
关键词
f(R; T); theory; LRS Bianchi type I; cosmological term; CONSTRAINTS; ANISOTROPY; UNIVERSE; LAMBDA; OMEGA; MAPS;
D O I
10.1142/S0219887818501153
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A study is made of the LRS Bianchi type-I cosmological model in f(R, T) modified gravity theory. Einstein's field equations in f(R, T) gravity are solved by taking f(R, T) = R + 2f(T) and the deceleration parameter (q) to be a linear function of the Hubble parameter (H). The universe begins with an initial singular state and changes with time from an early deceleration phase to a late time acceleratio phase. We have found that the jerk parameter (j) in the model approaches that of the Lambda CDM model at late times. We also discuss the physical and geometrical properties of the model.
引用
收藏
页数:10
相关论文
共 50 条
[31]   The cosmological model in f (R,Tφ) gravity with Scalar Field conformity [J].
Singh, J. K. ;
Singh, Akanksha ;
Shaily ;
Jena, J. .
CHINESE JOURNAL OF PHYSICS, 2023, 86 :616-627
[32]   Bulk viscous cosmological model in f(R, T) theory of gravity [J].
Debnath, Partha Sarathi .
INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2019, 16 (01)
[33]   Behaviour of the cosmological model with variable deceleration parameter [J].
Tiwari, R. K. ;
Beesham, A. ;
Shukla, B. K. .
EUROPEAN PHYSICAL JOURNAL PLUS, 2016, 131 (12)
[34]   Magnetized cosmological model with variable deceleration parameter [J].
Tarai, Sankarsan ;
Esmaeili, Fakhereh Md ;
Mishra, B. ;
Tripathy, S. K. .
INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2020, 29 (13)
[35]   ENERGY CONDITIONS AND STATEFINDER DIAGNOSTIC OF COSMOLOGICAL MODEL WITH SPECIAL LAW OF HUBBLE PARAMETER IN f(R,T) GRAVITY [J].
Patil, V. R. ;
Bolke, P. A. ;
Waghmare, S. K. ;
Pawde, J. L. .
EAST EUROPEAN JOURNAL OF PHYSICS, 2023, (03) :53-61
[36]   Linear redshift parametrization of deceleration parameter in f (R, Lm) gravity [J].
Myrzakulov, Yerlan ;
Donmez, O. ;
Yildiz, G. Dilara A. ;
Gudekli, E. ;
Muminov, S. ;
Rayimbaev, J. .
PHYSICS OF THE DARK UNIVERSE, 2024, 45
[37]   Bulk viscous Bianchi-V cosmological model within the formalism of f (R, T) = f1(R) plus f2(R) f3(T) gravity [J].
Bhardwaj, Vinod Kumar ;
Rana, Manoj Kumar ;
Yadav, Anil Kumar .
ASTROPHYSICS AND SPACE SCIENCE, 2019, 364 (08)
[38]   FLRW Transit Cosmological Model in f (R, T) Gravity [J].
Singh, Vijay ;
Jokweni, Siwaphiwe ;
Beesham, Aroonkumar .
UNIVERSE, 2024, 10 (07)
[39]   Bulk viscous cosmological model in f(T, ( T, T ) modified gravity [J].
Solanki, Raja ;
Bhat, Aaqid ;
Sahoo, P. K. .
ASTROPARTICLE PHYSICS, 2024, 163
[40]   Incorporating holographic dark energy in the big rip cosmological model with f(R, Σ T) - Gravity [J].
Bakry, M. A. ;
Alkaoud, A. .
INDIAN JOURNAL OF PHYSICS, 2024,