Nonunitary Classically Stable HD Gravity

Details Nonunitary Classically Stable HD Gravity Nonunitary Classically Stable HD Gravity

2002-07-16

arxiv.org/abs/gr-qc/0207059v1

AIP Conf.Proc. 643 (2003) 373-378

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

6 pages, to appear in Proceedings of the First International Conference on Quantum Limits to the Second Law, July 29-31, 2002,

Scientific paper

Classical instability in fourth order gravity is cured at the expense of
unitarity. The appearance of hidden degrees of freedom replicating those of
ordinary matter allows for ordinary thermodynamic entropy and black hole
entropy to be identified with von Neumann entropy. The emergent picture gives a
substantial agreement with B-H entropy and Hawking temperature.

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