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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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Robust quantum state transfer by optimal invariant-based reverse engineering.

Chun-Ling Zhang, Xiang Chen, Shuang-Juan Shen

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    |November 11, 2022
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    Summary
    This summary is machine-generated.

    This study introduces a robust population transfer scheme using optimal shortcut to adiabatic passage, improving precision in quantum systems. The method enhances robustness against errors, crucial for quantum information processing.

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    Area of Science:

    • Quantum physics
    • Quantum information science

    Background:

    • Minimizing operation time and mitigating harmful factors are key research goals.
    • Robust population transfer is essential for reliable quantum information processing.

    Purpose of the Study:

    • To present a general scheme for robust population transfer in a three-level system using invariant-based reverse engineering and optimal shortcut to adiabatic passage.
    • To enhance robustness against systematic errors and improve fidelity in quantum systems.

    Main Methods:

    • Utilizing invariant-based reverse engineering for optimal shortcut to adiabatic passage.
    • Introducing systematic error sensitivity to quantify process robustness.
    • Applying the technique to an optomechanical system for robust excitation fluctuation transfer.

    Main Results:

    • Achieved robust population transfer with improved fidelity (>0.95) even with 20% variation in coupling strengths.
    • Demonstrated superior robustness against coupling strength variations and lower unwanted state populations compared to existing methods.
    • Optimized transfer by minimizing systematic error sensitivity through suitable correlation coefficients.

    Conclusions:

    • The proposed scheme offers a promising approach for robust quantum information processing.
    • The method significantly enhances robustness against systematic errors and parameter variations.
    • This technique provides a valuable tool for advancing quantum technologies.