Bianchi-III Transitioning Space-Time in a Nonsingular Hybrid Universe within Lyra's Cosmology

被引:4
|
作者
Bhardwaj, Vinod Kumar [1 ]
Rana, Manoj Kumar [2 ]
机构
[1] GLA Univ, Dept Math, Mathura 281406, India
[2] GLA Univ, Dept Phys, Mathura 281406, India
来源
GRAVITATION & COSMOLOGY | 2020年 / 26卷 / 01期
关键词
DARK ENERGY MODELS; DECELERATION; LAMBDA; FLUID;
D O I
10.1134/S020228932001003X
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The existence of Lyra's cosmology is studied with the least interaction between normal matter and dark energy using Bianchi-III space-time in a nonsingular hybrid universe. The model explains the phase transition of the universe from deceleration to acceleration in the presence of a perfect fluid and naturewise anisotropic dark energy interacting very minimally to keep the energy-momentum tensors conserved independently. We take the hybrid average scale factor as , where are positive constants, which, with a time-varying deceleration parameter, describes both the early and late time features of universe. The time-varying displacement of Lyra's manifold used in the present model correlates with the nature of the cosmological constant. The physical and geometric properties of the model for a nonuniformly accelerated universe are also discussed with a comparison with other models.
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页码:41 / 49
页数:9
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