Detecting non-Gaussianity via nonclassicality

doi:10.1088/1402-4896/ab5b24

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	Detecting non-Gaussianity via nonclassicality
	Zhang,Yue 1,2; Luo,Shunlong1,2
	2020-01-28
发表期刊	Physica Scripta
ISSN	0031-8949
卷号	95 期号:3
摘要	Abstract 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.
关键词	quantum optics non-Gaussianity nonclassicality Wigner–Yanase skew information
DOI	10.1088/1402-4896/ab5b24
语种	英语
WOS记录号	IOP:0031-8949-95-3-ab5b24
出版者	IOP Publishing
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/50295
专题	应用数学研究所
作者单位	1.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
推荐引用方式 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).