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Main Author: Silverman, Steven J.
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2511.02768
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author Silverman, Steven J.
author_facet Silverman, Steven J.
contents When Hawking radiation from a rotating or non-rotating black hole becomes sufficiently intense, its own stress energy can no longer be treated as a perturbation on a fixed background. In this regime the outgoing flux may generate an additional, transient trapping surf ace exterior to the original event horizon. Using a simple spherically symmetric semi classical model we demonstrate that strong outgoing null energy can create nested apparent horizons, a feature reminiscent of the Penrose process but mediated by quantum back reaction. The effect is illustrated using a smooth Vaidya type mass profile, and conditions for bifurcation and merger of horizons are derived. We further propose that the separation between nested horizons may obey a discrete quantization rule analogous to the Bohr Sommerfeld condition,suggesting a geometric route toward quantum-gravity discreteness.
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institution arXiv
publishDate 2025
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spellingShingle Nested Apparent Horizons and Quantized Separation from Intense Hawking Backreaction
Silverman, Steven J.
General Relativity and Quantum Cosmology
When Hawking radiation from a rotating or non-rotating black hole becomes sufficiently intense, its own stress energy can no longer be treated as a perturbation on a fixed background. In this regime the outgoing flux may generate an additional, transient trapping surf ace exterior to the original event horizon. Using a simple spherically symmetric semi classical model we demonstrate that strong outgoing null energy can create nested apparent horizons, a feature reminiscent of the Penrose process but mediated by quantum back reaction. The effect is illustrated using a smooth Vaidya type mass profile, and conditions for bifurcation and merger of horizons are derived. We further propose that the separation between nested horizons may obey a discrete quantization rule analogous to the Bohr Sommerfeld condition,suggesting a geometric route toward quantum-gravity discreteness.
title Nested Apparent Horizons and Quantized Separation from Intense Hawking Backreaction
topic General Relativity and Quantum Cosmology
url https://arxiv.org/abs/2511.02768