期刊
CLASSICAL AND QUANTUM GRAVITY
卷 22, 期 14, 页码 3055-3060出版社
IOP PUBLISHING LTD
DOI: 10.1088/0264-9381/22/14/014
关键词
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In asymptotically anti-de Sitter gravity, diffeomorphisms that change the conformal boundary data can be promoted to genuine physical degrees of freedom. I show that in 2+1 dimensions, the dynamics of these degrees of freedom is described by a Liouville action, with the correct central charge to reproduce the entropy of the BTZ black hole.
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