Three-party sequential communication tasks certify incompatibility of quantum instruments via violation of a tight classical bound, providing genuine semi-device-independent certification independent of component incompatibilities.
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No-go theorems establish that strong signatures of the uncertainty principle modeled by complementary instruments cannot be simulated by a single measurement even with assistance, and these instruments are necessary and sufficient for advantage in unambiguous classical information transmission.
Generalized robustness of quantum channel incompatibility lower-bounds the total error of any approximate joint realization, unifying measurement uncertainty and no-disturbance principles.
citing papers explorer
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Genuine certification of incompatible quantum instruments through sequential communication tasks
Three-party sequential communication tasks certify incompatibility of quantum instruments via violation of a tight classical bound, providing genuine semi-device-independent certification independent of component incompatibilities.
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No-go theorems on simulating uncertainty principle's signatures
No-go theorems establish that strong signatures of the uncertainty principle modeled by complementary instruments cannot be simulated by a single measurement even with assistance, and these instruments are necessary and sufficient for advantage in unambiguous classical information transmission.
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Joint Realizability Tradeoffs Bounded by Quantum Channel Incompatibility
Generalized robustness of quantum channel incompatibility lower-bounds the total error of any approximate joint realization, unifying measurement uncertainty and no-disturbance principles.