Gravitational collapse in quantum gravity

Details Gravitational collapse in quantum gravity Gravitational collapse in quantum gravity

2008-01-08

arxiv.org/abs/0801.1317v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages. Invited talk published in "Mathematical Physics: Proceedings of the 12th. Regional Conference," Eds. J. Aslam et. al.

Scientific paper

We give a review of recent work aimed at understanding the dynamics of gravitational collapse in quantum gravity. Its goal is to provide a non-perturbative computational framework for understanding the emergence of the semi-classical approximation and Hawking radiation. The model studied is the gravity-scalar field theory in spherical symmetry. A quantization of this theory is given in which operators corresponding to null expansions and curvature are well defined. Together with the Hamiltonian, these operators allow one to follow the evolution of an initial matter-geometry state to a trapped configuration and beyond, in a singularity free and unitary setting.

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