Adding an ancilla qubit to GKP-stabilizer codes reduces Gaussian displacement noise standard deviation from σ to O(σ²) for universal hybrid CV-DV gates.
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A bosonic code from superpositions of squeezed Fock states maintains orthogonality at all squeezing levels and achieves error correction scaling as exp(-7r) for single-photon loss and dephasing.
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Noise Reduction for Universal Hybrid Oscillator-Qubit Quantum Computation
Adding an ancilla qubit to GKP-stabilizer codes reduces Gaussian displacement noise standard deviation from σ to O(σ²) for universal hybrid CV-DV gates.
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Quantum Error Correction with Superpositions of Squeezed Fock States
A bosonic code from superpositions of squeezed Fock states maintains orthogonality at all squeezing levels and achieves error correction scaling as exp(-7r) for single-photon loss and dephasing.