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Updated: Jan 8, 2026

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Quantum fluctuation recovery through scattering media.

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    This summary is machine-generated.

    Researchers developed a new method to reduce excess quantum noise in squeezed states after passing through disordered media. This technique can fully eliminate excess fluctuations, offering a path to clearer quantum signal transmission.

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    Area of Science:

    • Quantum optics
    • Disordered photonics
    • Quantum noise reduction

    Background:

    • Squeezed states traversing disordered media acquire excess noise beyond the shot-noise limit.
    • Existing wavefront shaping methods partially suppress this excess noise but do not eliminate it.

    Purpose of the Study:

    • To propose and investigate a novel noise-reduction scheme for squeezed states in disordered media.
    • To achieve a lower noise level than previously possible, potentially eliminating excess quantum fluctuations.

    Main Methods:

    • Combining a zero-transmission optical structure with wavefront shaping.
    • Analyzing the effect of this combined approach on single-mode squeezed states.

    Main Results:

    • The proposed scheme significantly reduces excess quantum fluctuations.
    • Full erasure of excess fluctuations is achieved for single-mode squeezed states.
    • The noise level can be reduced below the initial squeezed noise level.

    Conclusions:

    • The combined zero-transmission and wavefront shaping approach offers a superior method for noise reduction in disordered media.
    • This technique provides a pathway for eliminating excess noise, crucial for quantum information processing and sensing.