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Classification of quantum correlation using deep learning.

Shi-Bao Wu, Zhan-Ming Li, Jun Gao

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    Deep learning classifies quantum correlation in low light conditions, overcoming noise and loss. This quantum imaging technique achieves 99.99% accuracy, enabling quantum advantage in challenging environments.

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    Area of Science:

    • Quantum Information Science
    • Machine Learning
    • Quantum Optics

    Background:

    • Quantum correlation is vital for quantum mechanics and quantum technologies.
    • High loss and noise degrade quantum correlation, hindering quantum advantage.
    • Conventional methods struggle to classify quantum correlation in low light.

    Purpose of the Study:

    • To demonstrate deep learning for classifying quantum correlation in quantum imaging.
    • To address the challenge of distinguishing quantum and classical correlations under low light conditions.

    Main Methods:

    • Experimental demonstration of quantum correlation classification.
    • Design and implementation of a convolutional neural network (CNN).
    • Testing the CNN with low signal photon counts (0.1 photons per pixel).

    Main Results:

    • The CNN efficiently learns and classifies correlated photons.
    • Deep learning achieves 99.99% accuracy in classifying quantum correlation.
    • Demonstrated robustness against decreasing signal intensity where linear classification fails.

    Conclusions:

    • Deep learning offers a robust solution for quantum correlation classification in low light.
    • This approach enhances quantum advantage in noisy, lossy environments.
    • Opens new avenues for quantum-enhanced measurements like super-resolution microscopy and quantum illumination.