| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Quantifying Process Nonclassicality in Bosonic Fields |
| Shuang-Shuang Fu1**, Shun-Long Luo2,3 |
1School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083
2Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190
3School of Mathematical Sciences, University of the Chinese Academy of Sciences, Beijing 100049
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| Cite this article: |
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Shuang-Shuang Fu, Shun-Long Luo 2019 Chin. Phys. Lett. 36 104203 |
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Abstract Nonclassicality of optical states, as a key characteristic of bosonic fields, is a valuable resource for quantum information processing. We investigate the generation of nonclassicality in quantum processes from a quantitative perspective, introduce three information-theoretic measures of nonclassicality for quantum-optical processes based on the Wigner–Yanase skew information and coherent states, and illustrate their physical significance through several well-known single-mode quantum processes.
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Received: 04 July 2019
Published: 21 September 2019
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| PACS: |
42.50.Ex
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(Optical implementations of quantum information processing and transfer)
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03.67.-a
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(Quantum information)
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42.50.Dv
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(Quantum state engineering and measurements)
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| Fund: Supported by the Young Scientists Fund of the National Natural Science Foundation of China under Grant No 11605006, the National Natural Science Foundation of China under Grant No 11875317, the National Center for Mathematics and Interdisciplinary Sciences of Chinese Academy of Sciences under Grant No Y029152K51, and the Key Laboratory of Random Complex Structures and Data Science of Chinese Academy of Sciences under Grant No 2008DP173182. |
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