Dynamics of field nonclassicality in the Jaynes-Cummings model

doi:10.1007/s11128-020-02963-4

CORC > 数学与系统科学研究院 > 中国科学院数学与系统科学研究院 > 应用数学研究所

	Dynamics of field nonclassicality in the Jaynes-Cummings model
	Fu, Shuangshuang 5; Luo, Shunlong 1,4; Zhang, Yue 2,3
刊名	QUANTUM INFORMATION PROCESSING
	2021-03-02
卷号	20 期号:3 页码:21
关键词	Nonclassicality Wigner-Yanase skew information Jaynes-Cummings model
ISSN号	1570-0755
DOI	10.1007/s11128-020-02963-4
英文摘要	Employing an informational quantifier for nonclassicality of bosonic field based on the Wigner-Yanase skew information, we investigate the dynamics of field nonclassicality in the Jaynes-Cummings model evolving from several typical initial atom-field states: coherent states, Fock states, and thermal states for the field, and ground state, excited state, symmetric superposition state, and maximally mixed state for the atom. We reveal some intriguing features of the field dynamics and their sensitivity on the initial states from an informational perspective. The results show that field nonclassicality can be generated in most cases and exhibits complex dynamic patterns involving collapses and revivals. A remarkable observation is that the initial coherent field states, assisted by the atom, can be converted to almost maximally nonclassical field states constrained by the average photon number, even though all coherent states are the most classical and possess the same minimal nonclassicality among pure states. The field dynamics may be exploited to estimate the initial atom as well as the field states, prepare desired evolving states and process quantum information.
资助项目	Fundamental Research Funds for the Central Universities[FRF-TP-19-012A3] ; National Key R&D Program of China[2020YFA0712700] ; National Natural Science Foundation of China[11875317] ; National Natural Science Foundation of China[61833010]
WOS研究方向	Physics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000626158500006
内容类型	期刊论文
源URL	[http://ir.amss.ac.cn/handle/2S8OKBNM/58311]
专题	应用数学研究所
通讯作者	Zhang, Yue
作者单位	1.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China 2.Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China 3.Peking Univ, Frontiers Sci Ctr Nanooptoelect, Sch Phys, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China 4.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China 5.Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Fu, Shuangshuang,Luo, Shunlong,Zhang, Yue. Dynamics of field nonclassicality in the Jaynes-Cummings model[J]. QUANTUM INFORMATION PROCESSING,2021,20(3):21.
APA	Fu, Shuangshuang,Luo, Shunlong,&Zhang, Yue.(2021).Dynamics of field nonclassicality in the Jaynes-Cummings model.QUANTUM INFORMATION PROCESSING,20(3),21.
MLA	Fu, Shuangshuang,et al."Dynamics of field nonclassicality in the Jaynes-Cummings model".QUANTUM INFORMATION PROCESSING 20.3(2021):21.