Two new open-system approaches (Lanczos supermode expansion and Markovian master equation) model non-linear quantum soliton dynamics, capturing phase shifts and photon loss beyond linearization.
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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.
A hybrid CV-DV quantum error correction scheme uses discrete-variable ancillas to correct continuous-variable displacement errors and forms new oscillator-in-oscillator codes without GKP states.
Non-Markovian quantum Langevin analysis of simple LC and bandpass filter couplings to Josephson parametric devices yields modified gain profiles with bandwidth broadening beyond standard Markovian predictions.
Nonadiabatic modulation near a quantum critical point strongly boosts photon emission from vacuum fluctuations, enhancing flux and non-classical properties even against thermal noise.
The concatenated dual displacement code suppresses Gaussian displacement error variance by up to 50% under infinite squeezing while correcting lattice-crossing events in CV quantum error correction.
Convex optimization formulations and an analytical symplectic trace expression are introduced to reconstruct physical Gaussian covariance matrices and witness genuine multipartite entanglement from experimental data.
citing papers explorer
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Quantum Optical Soliton Dynamics Beyond Linearization: An Open-System Approach
Two new open-system approaches (Lanczos supermode expansion and Markovian master equation) model non-linear quantum soliton dynamics, capturing phase shifts and photon loss beyond linearization.
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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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Discrete-variable assisted error correction of continuous-variable quantum information
A hybrid CV-DV quantum error correction scheme uses discrete-variable ancillas to correct continuous-variable displacement errors and forms new oscillator-in-oscillator codes without GKP states.
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Modeling of simple bandpass filters: bandwidth broadening of Josephson parametric devices due to non-Markovian coupling to dressed transmission-line modes
Non-Markovian quantum Langevin analysis of simple LC and bandpass filter couplings to Josephson parametric devices yields modified gain profiles with bandwidth broadening beyond standard Markovian predictions.
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Quantum Vacuum Radiation Near a Critical Point
Nonadiabatic modulation near a quantum critical point strongly boosts photon emission from vacuum fluctuations, enhancing flux and non-classical properties even against thermal noise.
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A Concatenated Dual Displacement Code for Continuous-Variable Quantum Error Correction
The concatenated dual displacement code suppresses Gaussian displacement error variance by up to 50% under infinite squeezing while correcting lattice-crossing events in CV quantum error correction.
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Revisiting Gaussian genuine entanglement witnesses with modern software
Convex optimization formulations and an analytical symplectic trace expression are introduced to reconstruct physical Gaussian covariance matrices and witness genuine multipartite entanglement from experimental data.