Generalized Second Law of Thermodynamics in Extended Theories of Gravity

被引：29

作者：

Akbar, M. ^{[1
]}

机构：

[1] Natl Univ Sci & Technol, Ctr Adv Math & Phys, Rawalpindi, Pakistan

来源：

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2009年 / 48卷 / 09期

关键词：

Apparent horizon; Generalized second law; Extended theories of gravity; FIELD-EQUATIONS; BLACK-HOLE; SYMMETRICAL-SOLUTIONS; BEHAVIOR; UNIVERSE; HORIZONS; TENSOR;

D O I：

10.1007/s10773-009-0056-4

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By employing the general expression for temperature T-h = vertical bar kappa vertical bar/2 pi = 1/2 pi(r) over tilde (A) (1-((r) over tilde) over dot(A)/2H (r) over tilde (A)) associated with the apparent horizon of FRW universe and assuming a region of an expanding universe enclosed by the apparent horizon as a thermal system in equilibrium, we are able to show that the generalized second law of thermodynamics holds in Gauss-Bonnet and more general Lovelock gravities.

引用

页码：2672 / 2678

页数：7

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