Detection of quantum entanglement across the event horizon

Fuente: arXiv
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Hauptverfasser: Michalski, Patryk, Dragan, Andrzej
Format: Preprint
Veröffentlicht: 2025
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author Michalski, Patryk
Dragan, Andrzej
author_facet Michalski, Patryk
Dragan, Andrzej
contents We investigate the problem of distinguishing between separable and entangled states of two quantum wave packets, one of which falls into a black hole. Intuitively, one might expect the two scenarios to be indistinguishable, since the information carried by one wave packet is hidden beyond the event horizon. We show, however, that fundamental limitations on the localizability of quantum states render the two scenarios, in principle, distinguishable. Employing tools from quantum state discrimination theory, we analyze a concrete realization and discuss the configurations that maximize the probability of successfully distinguishing between the two cases.
format Preprint
id arxiv_https___arxiv_org_abs_2512_24424
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Detection of quantum entanglement across the event horizon
Michalski, Patryk
Dragan, Andrzej
Quantum Physics
We investigate the problem of distinguishing between separable and entangled states of two quantum wave packets, one of which falls into a black hole. Intuitively, one might expect the two scenarios to be indistinguishable, since the information carried by one wave packet is hidden beyond the event horizon. We show, however, that fundamental limitations on the localizability of quantum states render the two scenarios, in principle, distinguishable. Employing tools from quantum state discrimination theory, we analyze a concrete realization and discuss the configurations that maximize the probability of successfully distinguishing between the two cases.
title Detection of quantum entanglement across the event horizon
topic Quantum Physics
url https://arxiv.org/abs/2512.24424