Black Hole Cannibalism

• URL: http://arxiv.org/abs/2104.04536v1
• Date: Fri, 9 Apr 2021 18:00:10 GMT
• Title: Black Hole Cannibalism
• Authors: Ning Bao and Elizabeth Wildenhain
• Abstract summary: We consider a version of the Hayden-Preskill thought experiment in which the message thrown into the black hole is itself a smaller black hole. We then discuss the implications of the existence of a recovery channel for this black hole message at infinity. We suggest decoherence mechanisms as a way of resolving this sharpened paradox.
• Score: 0.304585143845864
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We consider a version of the Hayden-Preskill thought experiment in which the message thrown into the black hole is itself a smaller black hole. We then discuss the implications of the existence of a recovery channel for this black hole message at asymptotic infinity, resulting in a sharpening of the black hole information paradox for observers who never need to approach a horizon. We suggest decoherence mechanisms as a way of resolving this sharpened paradox.

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