An enhanced CV-MDI-QKD scheme correlates data and ancilla noise via symplectic transforms within GKP error correction to achieve fault-tolerant suppression of loss and operation errors, with numerical composable security shown for wired and wireless links under Gaussian attacks.
µq+ m−1 pe mpeX i=1 [q+]2 i − µq− m−1 pe mpeX i=1 [q−]2 i # , (B4) \⟨papb⟩ = m−1 pe mpeX i=1 [pa]i[pb]i = 1 4
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Fault-tolerant measurement-device-independent quantum key distribution with noisy non-Gaussian error correction
An enhanced CV-MDI-QKD scheme correlates data and ancilla noise via symplectic transforms within GKP error correction to achieve fault-tolerant suppression of loss and operation errors, with numerical composable security shown for wired and wireless links under Gaussian attacks.