Back to Search
Start Over
Entropy of black holes with multiple horizons
- Source :
- Nuclear Physics, Nuclear Physics B, Vol 930, Iss, Pp 513-523 (2018)
- Publication Year :
- 2018
- Publisher :
- Elsevier, 2018.
-
Abstract
- We examine the entropy of black holes in de Sitter space and black holes surrounded by quintessence. These black holes have multiple horizons, including at least the black hole event horizon and a horizon outside it (cosmological horizon for de Sitter black holes and “quintessence horizon” for the black holes surrounded by quintessence). Based on the consideration that the two horizons are not independent each other, we conjecture that the total entropy of these black holes should not be simply the sum of entropies of the two horizons, but should have an extra term coming from the correlations between the two horizons. Different from our previous works, in this paper we consider the cosmological constant as the variable and employ an effective method to derive the explicit form of the entropy. We also try to discuss the thermodynamic stabilities of these black holes according to the entropy and the effective temperature.
- Subjects :
- Physics
Nuclear and High Energy Physics
Conjecture
010308 nuclear & particles physics
Event horizon
De Sitter space
Astrophysics::High Energy Astrophysical Phenomena
Cosmological constant
Astrophysics::Cosmology and Extragalactic Astrophysics
Effective temperature
01 natural sciences
Theoretical physics
General Relativity and Quantum Cosmology
De Sitter universe
0103 physical sciences
lcsh:QC770-798
lcsh:Nuclear and particle physics. Atomic energy. Radioactivity
010306 general physics
Entropy (arrow of time)
Quintessence
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Nuclear Physics
- Accession number :
- edsair.doi.dedup.....e26526e5c4c03f448371ff6f37f94d6c