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Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

Centre for Particle Theory Colloquia: Black hole entropy from horizon constraints

Presented by Steve Carlip, UC Davis

13 November 2007 16:15 in CLC 202

To describe black hole thermodynamics in any quantum theory of
gravity, one must introduce constraints that ensure that a black
hole is actually present. I show that for a very large class of
dilaton black holes, the inclusion of such ``horizon constraints''
allows us to use conformal field theory techniques to compute the
density of states, reproducing the correct Bekenstein-Hawking entropy
in a nearly model-independent manner. This picture suggests an
elegant description of the relevant degrees of freedom, as
Goldstone-boson-like excitations arising from symmetry breaking
by a conformal anomaly induced by the horizon constraints.

Contact or for more information

Coffee and biscuits at 15:30 in CM 211 (Maths Coffee Room).