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Squeezed light generated with hyperradiance without nonlinearity.

Jun Li, Chengjie Zhu, Yaping Yang

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    We demonstrate how quantum interference in an optical cavity with two qubits can generate squeezed light and hyperradiance. This controlled quantum phenomenon has potential applications in various quantum systems.

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    Area of Science:

    • Quantum Optics
    • Quantum Information Science
    • Cavity Quantum Electrodynamics

    Background:

    • Squeezed light generation is crucial for quantum technologies.
    • Hyperradiance offers enhanced light-matter interaction.
    • Controlling quantum interference is key to novel phenomena.

    Purpose of the Study:

    • To propose and theoretically investigate the generation of squeezed light and hyperradiance.
    • To explore the role of quantum interference in a two-qubit system within an optical cavity.
    • To identify conditions for controlled squeezed light generation.

    Main Methods:

    • Theoretical modeling of a linear system with a high-quality optical cavity and two coherently driven two-level qubits.
    • Analysis of quantum interference effects under strong coupling and weak driving conditions.
    • Application of Klyshko's criterion to analyze photon statistics.

    Main Results:

    • Squeezed light generation is induced by quantum interference in the hyperradiance regime.
    • Optimal qubit placement (half-wavelength separation) leads to opposite coupling coefficients.
    • Klyshko's criterion confirms photon number parity, and squeezed light angles are tunable via frequency detuning.

    Conclusions:

    • The proposed system provides a method for generating tunable squeezed light and hyperradiance.
    • This work offers a pathway for practical implementation in various quantum systems like atoms, ions, and quantum dots.
    • The findings contribute to the fundamental understanding of light-matter interactions and quantum interference.