Counting entropy in causal set quantum gravity

Details Counting entropy in causal set quantum gravity Counting entropy in causal set quantum gravity

2006-12-12

arxiv.org/abs/gr-qc/0612074v1

Proceedings of the Eleventh Marcel Grossmann Meeting on General Relativity, (ed.) H. Kleinert, R.T. Jantzen and R. Ruffini, Wo

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, 1 figure. Talk given by S. Zohren at the Eleventh Marcel Grossmann Meeting on General Relativity at the Freie U. Berl

Scientific paper

The finiteness of black hole entropy suggest that spacetime is fundamentally discrete, and hints at an underlying relationship between geometry and "information". The foundation of this relationship is yet to be uncovered, but should manifest itself in a theory of quantum gravity. We review recent attempts to define a microscopic measure for black hole entropy and for the maximum entropy of spherically symmetric spacelike regions, within the causal set approach to quantum gravity.

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