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Related Experiment Video

Updated: Apr 15, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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Quantum phase gate for optical qubits with cavity quantum optomechanics.

Muhammad Asjad, Paolo Tombesi, David Vitali

    Optics Express
    |April 4, 2015
    PubMed
    Summary

    We demonstrate a quantum phase gate for optical qubits using a cavity optomechanical system. This method is robust against losses and relies on strong single-photon coupling.

    Area of Science:

    • Quantum optics
    • Optomechanics
    • Quantum information science

    Background:

    • Quantum gates are essential for quantum computation.
    • Optomechanical systems offer a promising platform for quantum information processing.
    • Implementing deterministic quantum gates is a key challenge.

    Purpose of the Study:

    • To propose a deterministic quantum phase gate implementation.
    • To utilize a cavity optomechanical system for quantum information processing.
    • To analyze the robustness of the proposed scheme.

    Main Methods:

    • Utilizing a mechanical resonator coupled to two optical cavity modes.
    • Leveraging strong single-photon optomechanical coupling.
    • Operating in the resolved sideband regime.

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    Related Experiment Videos

    Last Updated: Apr 15, 2026

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    Main Results:

    • Demonstrated a deterministic quantum phase gate between optical qubits.
    • The scheme is realizable with strong coupling.
    • The proposed gate is robust against cavity losses.

    Conclusions:

    • Cavity optomechanical systems can deterministically implement quantum phase gates.
    • The scheme offers a practical approach for quantum information processing.
    • The robustness against losses enhances its applicability.