Journal
PHYSICS LETTERS B
Volume 706, Issue 4-5, Pages 447-450Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2011.11.036
Keywords
Euclidean path integral; Brick wall; Black hole; Thermodynamics
Funding
- National Research Foundation of Korea (NRF)
- Korea government (MEST) through the Center for Quantum Spacetime (CQUeST) of Sogang University [2005-0049409]
- Korean Government (Ministry of Education, Science and Technology) [NRF-2010-359-000007, 2011-0005147]
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The entropy of the Schwarzschild-anti de Sitter black hole in the recently proposed four-dimensional critical gravity is trivial in the Euclidean action formulation, while it can be expressed by the area law in terms of the brick wall method given by 't Hooft. To resolve this discrepancy, we relate the Euclidean action formulation to the brick wall method semiclassically, and show that the entropy of the black hole can be expressed by the area law even at the critical point. (C) 2011 Elsevier B.V. All rights reserved.
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