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Dynamics of field nonclassicality in the Jaynes-Cummings model

文献类型：期刊论文

作者Fu, Shuangshuang1; Luo, Shunlong2,3; Zhang, Yue4,5
刊名QUANTUM INFORMATION PROCESSING
出版日期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
DOI10.1007/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
WOS记录号WOS:000626158500006
出版者SPRINGER
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.Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, 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
4.Peking Univ, Frontiers Sci Ctr Nanooptoelect, Sch Phys, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
5.Beijing Acad Quantum Informat Sci, Beijing 100193, 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.

入库方式： OAI收割

来源：数学与系统科学研究院

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