Detecting non-Gaussianity via nonclassicality
Zhang,Yue1,2; Luo,Shunlong1,2
Source PublicationPhysica Scripta
AbstractAbstract Two prominent classification schemes for Bosonic field states are (i) classical versus nonclassical, and (ii) Gaussian versus non-Gaussian. These two paradigms are closely related yet fundamentally different. In particular, classical states may be Gaussian or non-Gaussian, and Gaussian states may be classical or nonclassical. Both non-Gaussianity and nonclassicality are important resources for quantum information processing. It is desirable to study the interplay between non-Gaussianity and nonclassicality, and seek effective methods of detecting them. In this work, we introduce a quantifier for non-Gaussianity by exploiting and optimizing an information-theoretic quantifier for nonclassicality, and exhibit its basic properties. A criterion for simultaneously detecting non-Gaussianity and nonclassicality follows, and its applications are illustrated through several examples. This unveils some intrinsic relations between non-Gaussianity and nonclassicality.
Keywordquantum optics non-Gaussianity nonclassicality Wigner–Yanase skew information
WOS IDIOP:0031-8949-95-3-ab5b24
PublisherIOP Publishing
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Document Type期刊论文
Affiliation1.Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
2.School of Mathematical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
Recommended Citation
GB/T 7714
Zhang,Yue,Luo,Shunlong. Detecting non-Gaussianity via nonclassicality[J]. Physica Scripta,2020,95(3).
APA Zhang,Yue,&Luo,Shunlong.(2020).Detecting non-Gaussianity via nonclassicality.Physica Scripta,95(3).
MLA Zhang,Yue,et al."Detecting non-Gaussianity via nonclassicality".Physica Scripta 95.3(2020).
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