A hyper-decoherence map is constructed that produces standard quantum theory from quantum boxes theory, evading the Lee-Selby no-go theorem via relaxations on past signalling and purification uniqueness.
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2025 2verdicts
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In Gaussian quantum networks for distributed phase sensing, tailored photon-number correlated states achieve perfect privacy and optimal precision, while fully symmetric Gaussian states reach asymptotic perfect privacy with near-optimal performance and quadratic scaling under local homodyne readout.
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Decoherence to quantum theory from a causally-indefinite post-quantum theory
A hyper-decoherence map is constructed that produces standard quantum theory from quantum boxes theory, evading the Lee-Selby no-go theorem via relaxations on past signalling and purification uniqueness.
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Privacy in Distributed Quantum Sensing with Gaussian Quantum Networks
In Gaussian quantum networks for distributed phase sensing, tailored photon-number correlated states achieve perfect privacy and optimal precision, while fully symmetric Gaussian states reach asymptotic perfect privacy with near-optimal performance and quadratic scaling under local homodyne readout.