The generalized second law in universes with quantum corrected entropy relations

被引:101
作者
Radicella, Ninfa [1 ,2 ]
Pavon, Diego [2 ]
机构
[1] Univ Autonoma Barcelona, Dept Fis, Bellaterra 08193, Barcelona, Spain
[2] Ist Nazl Fis Nucl, Sez Torino, I-10100 Turin, Italy
关键词
Cosmology; Thermodynamics; BLACK-HOLE ENTROPY; THERMODYNAMICS; COSMOLOGY; HORIZONS;
D O I
10.1016/j.physletb.2010.06.019
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We apply the generalized second law of thermodynamics to discriminate among quantum corrections (whether logarithmic or power-law) to the entropy of the apparent horizon in spatially Friedmann-Robertson-Walker universes. We use the corresponding modified Friedmann equations along with either Clausius relation or the principle of equipartition of the energy to set limits on the value of a characteristic parameter entering the said corrections. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:121 / 126
页数:6
相关论文
共 27 条
[1]   STRING-DRIVEN INFLATIONARY AND DEFLATIONARY COSMOLOGICAL MODELS [J].
BARROW, JD .
NUCLEAR PHYSICS B, 1988, 310 (3-4) :743-763
[2]   GENERALIZED SECOND LAW OF THERMODYNAMICS IN BLACK-HOLE PHYSICS [J].
BEKENSTE.JD .
PHYSICAL REVIEW D, 1974, 9 (12) :3292-3300
[3]   BLACK HOLES AND ENTROPY [J].
BEKENSTEIN, JD .
PHYSICAL REVIEW D, 1973, 7 (08) :2333-2346
[4]   Hawking radiation of an apparent horizon in a FRW universe [J].
Cai, Rong-Gen ;
Cao, Li-Ming ;
Hu, Ya-Peng .
CLASSICAL AND QUANTUM GRAVITY, 2009, 26 (15)
[5]   ON THE THERMODYNAMICS OF MATTER CREATION IN COSMOLOGY [J].
CALVAO, MO ;
LIMA, JAS ;
WAGA, I .
PHYSICS LETTERS A, 1992, 162 (03) :223-226
[6]   Universal canonical black hole entropy [J].
Chatterjee, A ;
Majumdar, P .
PHYSICAL REVIEW LETTERS, 2004, 92 (14) :141301-1
[7]   Varying c and particle horizons [J].
Chimento, LP ;
Jakubi, AS ;
Pavón, D .
PHYSICS LETTERS B, 2001, 508 (1-2) :1-5
[8]   COSMOLOGICAL HORIZONS AND THE GENERALIZED SECOND LAW OF THERMODYNAMICS [J].
DAVIES, PCW .
CLASSICAL AND QUANTUM GRAVITY, 1987, 4 (06) :L225-L228
[9]   Cosmology - Black holes constrain varying constants [J].
Davies, PCW ;
Davis, TM ;
Lineweaver, CH .
NATURE, 2002, 418 (6898) :602-603
[10]   Black-hole entropy from quantum geometry [J].
Domagala, M ;
Lewandowski, J .
CLASSICAL AND QUANTUM GRAVITY, 2004, 21 (22) :5233-5243