A scheme using squeezed vacuum injection and environmental feedforward suppresses loss-induced decoherence for general unknown optical non-Gaussian states, yielding higher fidelity and Wigner negativity than the unsuppressed case.
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Proposes multi-component bridge states outside cat code space for syndrome extraction in teleportation-based cat code QEC when nonlinear interactions are limiting.
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Environment-Assisted Decoherence Suppression of Optical Non-Gaussian States
A scheme using squeezed vacuum injection and environmental feedforward suppresses loss-induced decoherence for general unknown optical non-Gaussian states, yielding higher fidelity and Wigner negativity than the unsuppressed case.
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Use of Faulty States in Cat-Code Error Correction
Proposes multi-component bridge states outside cat code space for syndrome extraction in teleportation-based cat code QEC when nonlinear interactions are limiting.