Generalized second law of thermodynamics for FRW cosmology with power-law entropy correction

被引：36

作者：

Debnath, Ujjal ^{[1
]}

Chattopadhyay, Surajit ^{[2
]}

Hussain, Ibrar ^{[3
]}

Jamil, Mubasher ^{[4
]}

Myrzakulov, Ratbay ^{[5
]}

机构：

[1] Bengal Engn & Sci Univ, Dept Math, Sibpur 711103, Howrah, India

[2] Pailan Coll Management & Technol, Dept Comp Applicat, Math Sect, Kolkata 700104, India

[3] Natl Univ Sci & Technol NUST, Sch Elect Engn & Comp Sci SEECS, Islamabad, Pakistan

[4] Natl Univ Sci & Technol NUST, Ctr Adv Math & Phys CAMP, Islamabad, Pakistan

[5] Eurasian Natl Univ, Eurasian Int Ctr Theoret Phys, Astana 010008, Kazakhstan

来源：

EUROPEAN PHYSICAL JOURNAL C | 2012年 / 72卷 / 02期

关键词：

INTERACTING DARK ENERGY; CHAPLYGIN-GAS; BLACK-HOLES; CONSTRAINTS; HORIZONS;

D O I：

10.1140/epjc/s10052-012-1875-7

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

In this work, we have considered the power-law correction of entropy on the horizon. If the flat FRW Universe is filled with the n components fluid with interactions, the GSL of thermodynamics for apparent and event horizons have been investigated for equilibrium and non-equilibrium cases. If we consider a small perturbation around the de Sitter spacetime, the general conditions of the validity of GSL have been found. Also if a phantom dominated Universe has a pole-like type scale factor, the validity of GSL has also been analyzed. Further we have obtained constraints on the power-law parameter alpha in the phantom and quintessence dominated regimes. Finally we obtain conditions under which GSL breaks down in a cosmological background.

引用

页码：1 / 6

页数：6

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