Open AccessStatistical entropy of reissner-nordstrm-de sitter black hole by generalized uncertainty principle
Author(s) -
Hai Huang,
Feng He,
Houjun Sun
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.110403
Subject(s) - physics , de sitter–schwarzschild metric , entropy (arrow of time) , quantum relative entropy , mathematical physics , extremal black hole , joint quantum entropy , de sitter universe , scalar field , generalized relative entropy , black hole thermodynamics , black hole (networking) , quantum mechanics , quantum , quantum discord , quantum entanglement , computer network , routing protocol , routing (electronic design automation) , computer science , universe , link state routing protocol
Statistical entropy of scalar field outside Reissner-Nordstrm-de Sitter black hole is computed by the equation of state density corrected by the generalized uncertainty principle and by Wentzel-Kramers-Brillouin approximation method. The result shows that the entropy is proportional to the sum of the internal, the external and the cosmological horizon areas, which accords with these calculated by other methods. It shows internal relation between the entropy of black hole and horizon area. The entropy of black hole is the entropy of quantum state on horizon, which is a quantum effect.