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Detecting nonclassicality via Gaussian noise channel

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Abstract

By exploiting the decoherent effect of Gaussian noise channel, we formulate a simple approach to quantifying optical nonclassicality of an optical state in terms of Wick-ordered characteristic function. We present a family of quantifiers of single-mode bosonic nonclassicality, which have many desirable properties. We further illustrate the quantifiers by several typical states. Our approach can also be generalized to the multi-mode cases.

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Acknowledgements

This work was supported by the National Key R &D Program of China, Grant No. 2020YFA0712700, and the National Natural Science Foundation of China, Grant No. 11875317.

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Authors and Affiliations

  1. Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, 100190, China

    Xiaohui Li, Shunlong Luo & Yue Zhang

  2. School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China

    Xiaohui Li, Shunlong Luo & Yue Zhang

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  1. Xiaohui Li
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Correspondence to Yue Zhang.

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Li, X., Luo, S. & Zhang, Y. Detecting nonclassicality via Gaussian noise channel. Eur. Phys. J. Plus 137, 1382 (2022). https://doi.org/10.1140/epjp/s13360-022-03594-7

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