Correction to the Friedmann equation with Sharma-Mittal entropy: A new perspective on cosmology

被引：3
作者：
Naeem, Muhammad [1 ]
Bibi, Aysha [1 ]
机构：
[1] Quaid I Azam Univ, Dept Math, Islamabad, Pakistan
来源：
ANNALS OF PHYSICS | 2024年 / 462卷
关键词：
Sharma-Mittal entropy; Emergence force; Second law of thermodynamics; Tsallis entropy; Renyi entropy; HOLOGRAPHIC DARK ENERGY; GENERALIZED ENTROPY; THERMODYNAMICS; TSALLIS; GRAVITY; RENYI; LAW;
D O I：
10.1016/j.aop.2024.169618
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
As the black hole entropy does not obey the area law on it. The area law, given by S similar to A(delta )or A (R), where delta and R , for 0 <=delta <= 1, 0<R <= 1, indicates the amount of quantum gravitational deformation effects. This shows that gravity and thermodynamics are closely related. Based on this deep connection, we tried to discuss the effects of Sharma-Mittal entropy on the cosmological equations. We also investigated whether the apparent horizon-enclosed universe was consistence with the generalized second law of thermodynamics. Finally, using the gravity emergence scenario, we derived the modified Friedmann equation and, compared it with that derived from the first law of thermodynamics in the presence of Sharma-Mittal entropy. It is observed that we can recover the results for standard cosmology when R,delta=1.
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页数：12
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