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Detecting spin nonclassicality via average skew information

文献类型：期刊论文

作者Dai, Hao1; Luo, Shunlong2,3
刊名EUROPEAN PHYSICAL JOURNAL PLUS
出版日期2022-05-29
卷号137期号:5页码:10
ISSN号2190-5444
DOI10.1140/epjp/s13360-022-02875-5
英文摘要Spin nonclassicality is the discrete analogue of the continuous variable optical nonclassicality, and may be regarded as a resource related to coherence or quantumness of states with respect to an overcomplete basis consisting of spin coherent states. It plays a significant role in some quantum information processing tasks such as quantum computation and quantum metrology. Detecting and quantifying spin nonclassicality, which are of both theoretical and experimental relevance, have attracted much attention in quantum information theory. In this work, by virtue of the Wigner-Yanase skew information and the resolution of identity induced by spin coherent states, we provide an information-theoretic approach to spin nonclassicality, elucidate its basic properties and illustrate it through some important and widely used spin states. In particular, we derive a convenient criterion for detecting spin nonclassicality and use it to certify spin nonclassicality for some prototypical states.
资助项目National Key R &D Program of China[2020YFA0712700] ; National Key R &D Program of China[2019QY0702] ; National Key R &D Program of China[2017YFA0303903] ; National Natural Science Foundation of China[11875317] ; National Natural Science Foundation of China[61833010]
WOS研究方向Physics
语种英语
WOS记录号WOS:000802132400001
出版者SPRINGER HEIDELBERG
源URL[http://ir.amss.ac.cn/handle/2S8OKBNM/61396]  
专题应用数学研究所
通讯作者Luo, Shunlong
作者单位1.Tsinghua Univ, Ctr Quantum Informat, Inst Interdisciplinary Informat Sci, Beijing 100084, Peoples R China
2.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Dai, Hao,Luo, Shunlong. Detecting spin nonclassicality via average skew information[J]. EUROPEAN PHYSICAL JOURNAL PLUS,2022,137(5):10.
APA Dai, Hao,&Luo, Shunlong.(2022).Detecting spin nonclassicality via average skew information.EUROPEAN PHYSICAL JOURNAL PLUS,137(5),10.
MLA Dai, Hao,et al."Detecting spin nonclassicality via average skew information".EUROPEAN PHYSICAL JOURNAL PLUS 137.5(2022):10.

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来源：数学与系统科学研究院

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