Quantum Gravitational Corrections to Particle Creation by Black Holes
Xavier Calmet, Stephen D. H. Hsu, Marco Sebastianutti
TL;DR
This paper investigates how quantum gravitational effects modify Hawking radiation, revealing a mechanism for information escape from black holes through quantum corrections to the exterior metric.
Contribution
It provides explicit calculations of quantum gravitational corrections to Hawking particle emission and links these to the quantum state of the black hole and its exterior metric.
Findings
Quantum corrections depend on quantum hair.
Emission amplitudes encode black hole quantum state.
Mechanism for information escape via quantum hair.
Abstract
We calculate quantum gravitational corrections to the amplitude for the emission of a Hawking particle by a black hole. We show explicitly how the amplitudes depend on quantum corrections to the exterior metric (quantum hair). This reveals the mechanism by which information escapes the black hole. The quantum state of the black hole is reflected in the quantum state of the exterior metric, which in turn influences the emission of Hawking quanta.
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Taxonomy
TopicsBlack Holes and Theoretical Physics · Quantum Electrodynamics and Casimir Effect · Cosmology and Gravitation Theories