FLRW Transit Cosmological Model in f (R, T) Gravity

被引：1
|
作者：
Singh, Vijay [1 ]
Jokweni, Siwaphiwe [2 ]
Beesham, Aroonkumar [2 ,3 ,4 ]
机构：
[1] Univ Delhi, Kirori Mal Coll, Dept Math, Delhi 110007, India
[2] Univ Zululand, Dept Math Sci, P Bag X1001, ZA-3886 Kwa Dlangezwa, South Africa
[3] Mangosuthu Univ Technol, Fac Nat Sci, ZA-4026 Jacobs, South Africa
[4] Natl Inst Theoret & Computat Sci NITheCS, ZA-7611 Stellenbosch, South Africa
来源：
UNIVERSE | 2024年 / 10卷 / 07期
关键词：
f; (R; T); gravity; dark energy; scale factor; DARK ENERGY; INFLATIONARY UNIVERSE; POWER SPECTRUM; CASIMIR FORCE; DYNAMICS; QUANTUM; LAMBDA; RECONSTRUCTION; DECELERATION; QUINTESSENCE;
D O I：
10.3390/universe10070272
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A Friedmann-Lemaitre-Robertson-Walker space-time model with all curvatures k=0, +/- 1 is explored in f(R,T) gravity, where R is the Ricci scalar, and T is the trace of the energy-momentum tensor. The solutions are obtained via the parametrization of the scale factor that leads to a model transiting from a decelerated universe to an accelerating one. The physical features of the model are discussed and analyzed in detail. The study shows that f(R,T) gravity can be a good alternative to the hypothetical candidates of dark energy to describe the present accelerating expansion of the universe.
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页数：18
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