WHEN IS S = A/4?
Open accessAbstract
Black hole entropy and its relation to the horizon area are considered. More precisely, the conditions and specifications that are expected to be required for the assignment of entropy, and the consequences that these expectations have when applied to a black hole are explored. In particular, the following questions are addressed: When do we expect to assign an entropy?; when are entropy and area proportional? and, what is the nature of the horizon? It is concluded that our present understanding of black hole entropy is somewhat incomplete, and some of the relevant issues that should be addressed in pursuing these questions are pointed out.
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Cites
Particle creation by black holes
Hawking, S. W. (1975) · Communications In Mathematical Physics · doi:10.1007/bf02345020 · Cited by 13,106 · cited 1× · see citing works
“semi-classical calculation [3], thus indicating that black hole entropy is quantum mechanical in”
BackgroundGravitational Collapse and Space-Time Singularities
Penrose, R. (1965) · Physical Review Letters · doi:10.1103/physrevlett.14.57 · Cited by 2,977 · see citing works
Quantum geometry and black hole entropy
Ashtekar, A., Baez, J., Corichi, A., & Krasnov, K. (1998) · Physical Review Letters · doi:10.1103/physrevlett.80.904 · Cited by 1,105 · cited 2× · see citing works
“particular importance are the recent attempts to recover, from basic approaches to quantum gravity, the “standard expression” for the entropy of a black hole [4,5].”
BackgroundSelf-citationQuantum geometry of isolated horizons and black hole entropy
Ashtekar, A., Baez, J. C., & Krasnov, K. (2000) · Advances in Theoretical and Mathematical Physics · doi:10.4310/atmp.2000.v4.n1.a1 · Cited by 580 · see citing works
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Entropic Issues in Contemporary Cosmology
COULE, D. H. (2003) · International Journal of Modern Physics D · doi:10.1142/s0218271803003530 · Cited by 6 · see citing works
- Authors
- CORICHI, A., & SUDARSKY, D.
- Affiliations
- Universidad Nacional Autónoma de México (MX)
- Venue
- Modern Physics Letters A
- Publisher
- World Scientific Pub Co Pte Lt
- Published
- 2002-07-20
- Volume
- 17
- Issue
- 22
- Pages
- 1431-1443
- ISSN
- 0217-7323 (ISSN-L)
- 1793-6632
- OpenAlex
- W2011964788
- Cited by
- 12
- References
- 4
- Citations by year
- 2022: 1 · 2018: 1 · 2016: 1 · 2015: 1 · 2013: 1 · 2012: 1
- FWCI
- 0.35
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Modern Physics Letters A (publishedVersion)
- arXiv (Cornell University) (publishedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Black Holes and Theoretical Physics
- Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Statistical Mechanics and Entropy
- Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Noncommutative and Quantum Gravity Theories
- Keywords
- black hole entropy, event horizon area, entropy-area relation, black hole thermodynamics
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