Black holes in gravity with conformal anomaly and logarithmic term in black hole entropy

被引:140
作者
Cai, Rong-Gen [1 ,2 ]
Cao, Li-Ming [2 ]
Ohta, Nobuyoshi [2 ]
机构
[1] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
[2] Kinki Univ, Dept Phys, Osaka 5778502, Japan
关键词
Classical Theories of Gravity; Black Holes; Field Theories in Higher Dimensions; TRACE ANOMALIES; THERMODYNAMICS;
D O I
10.1007/JHEP04(2010)082
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We present a class of exact analytic and static, spherically symmetric black hole solutions in the semi-classical Einstein equations with Weyl anomaly. The solutions have two branches, one is asymptotically flat and the other asymptotically de Sitter. We study thermodynamic properties of the black hole solutions and find that there exists a logarithmic correction to the well-known Bekenstein-Hawking area entropy. The logarithmic term might come from non-local terms in the effective action of gravity theories. The appearance of the logarithmic term in the gravity side is quite important in the sense that with this term one is able to compare black hole entropy up to the subleading order, in the gravity side and in the microscopic statistical interpretation side.
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页数:10
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