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Dynamics of Asymptotic Diffeomorphisms in (2+1)-Dimensional Gravity

S. Carlip
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Abstract

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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S. Carlip. 2005-04-28. Dynamics of Asymptotic Diffeomorphisms in (2+1)-Dimensional Gravity. https://doi.org/10.1088/0264-9381%2F22%2F14%2F014

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