Generalized Ghost Version of Pilgrim Dark Energy in Loop Quantum Gravity Motivated Cosmology

被引:3
|
作者
Maity, Sayani [1 ]
Debnath, Ujjal [2 ]
机构
[1] Techno Main Salt Lake, Dept Math, Sect 5, Kolkata 700091, India
[2] Bengal Engn & Sci Univ, Dept Math, Sibpur 711103, Howrah, India
来源
GRAVITATION & COSMOLOGY | 2021年 / 27卷 / 04期
关键词
BLACK-HOLES; ACCRETION; MODEL;
D O I
10.1134/S0202289321040095
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
One of the most interesting proposals of dark energy model is Pilgrim Dark Energy (PDE). This model is based on the assumption that the rapid expansion of the Universe is due to a phantom-like repulsive force that is capable to prevent black hole formation. In this study, we explore this phenomenon in the framework of Loop Quantum Gravity motivated cosmology by taking the Generalized Ghost version of PDE. An interaction between the constructed DE model and cold dark matter has also been considered. We evaluate the cosmological parameters, such as the Hubble and deceleration parameters, the equation of state parameter omega(G) , the squared speed of sound and also cosmological planes omega(G)-omega'(G) (where omega'(G) is a derivative of omega(G) with respect to the scale factor a) and the statefinder parameters r and s on the basis of the Generalized Ghost version of PDE, the parameter u and the interaction parameter (5. The trajectories of these cosmological diagnostic parameters give evidence that our constructed model can explain the phantom regime as well as the quintessence regime in the late Universe. Also, from a stability analysis, we see that our model is classically stable.
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页码:375 / 382
页数:8
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