1. Quantum gravity of dust collapse: shock waves from black holes
- Author
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Viqar Husain, Jarod George Kelly, Robert Santacruz, and Edward Wilson-Ewing
- Subjects
General Relativity and Quantum Cosmology ,General Physics and Astronomy ,FOS: Physical sciences ,General Relativity and Quantum Cosmology (gr-qc) - Abstract
We study the quantum gravitational collapse of spherically symmetric pressureless dust. Using an effective equation derived from a polymer quantization in the connection-triad phase space variables of general relativity, we find numerically, for a variety of initial dust configurations, that (i) trapped surfaces form and disappear as an initially collapsing density profile evolves into an outgoing shockwave; (ii) black hole lifetime is proportional to the square of its mass; and (iii) there is no mass inflation at inner apparent horizons. These results provide a substantially different view of black hole formation and subsequent evolution than found from semiclassical analyses., Comment: 6 pages, 4 figures. v2: Conformal diagram added, minor clarifications, references added
- Published
- 2021
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