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How to Recover a Qubit That Has Fallen Into a Black Hole

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arxiv 1507.03592 v3 pith:YF6I54AV submitted 2015-07-13 hep-th gr-qcquant-ph

Aidan Chatwin-Davies , Adam S. Jermyn , Sean M. Carroll This is my paper · ORCID
classification hep-thgr-qcquant-ph
keywords blackholemeasurementsqubitretrievalabilityachievedalgorithm
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We demonstrate an algorithm for the retrieval of a qubit, encoded in spin angular momentum, that has been dropped into a no-firewall black hole. Retrieval is achieved analogously to quantum teleportation by collecting Hawking radiation and performing measurements on the black hole. Importantly, these methods only require the ability to perform measurements from outside the event horizon.

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Cited by 1 Pith paper

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  1. Quantum circuit simulation of black hole evaporation and Maxwell demon interpretation

    gr-qc 2025-05 reject novelty 4.0 of 10

    A Maxwell demon inside a black hole is used in a quantum circuit to steer outside qubits via a wormhole, claimed to simulate Hawking radiation entanglement while dissipating energy of order the black hole entropy.

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