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Concurrence of three Jaynes–Cummings systems

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Abstract

We apply genuine multipartite concurrence to investigate entanglement properties of three Jaynes–Cummings systems. Three atoms are initially put in GHZ-like state and locally interact with three independent cavities, respectively. We present analytical concurrence expressions for various subsystems including three-atom, three-cavity and some atom-cavity mixed systems. We also examine the global system and illustrate the evolution of its concurrence. Except for the sudden death of entanglement, we find for some initial entanglement parameter \(\theta \), the concurrence of the global system may maintain unchanged in some time intervals.

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Acknowledgements

We would like to thank the editor and kind referees for their invaluable suggestions, which improved the manuscript greatly. This work is supported in part by 20170938-SIP, IPN, Mexico and also supported partially by the CONACYT project under Grant No. 288856-CB-2016.

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Authors and Affiliations

  1. Faculty of Science, Xi’an University of Architecture and Technology, Xi’an, 710055, China

    Wen-Chao Qiang

  2. Catedrática CONACYT, Centro de Investigación en Computación, Instituto Politécnico Nacional, Av. Juan de Dios Bátiz, Esq. Miguel Othón de Mendizábal, Col. Nueva Industrial Vallejo, Delegación Gustavo A. Madero, C. P 07738, Mexico City, Mexico

    Guo-Hua Sun

  3. Laboratorio de Información Cuántica, CIDETEC, Instituto Politécnico Nacional, UPALM, 07700, Mexico City, CDMX, Mexico

    Qian Dong, Oscar Camacho-Nieto & Shi-Hai Dong

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  1. Wen-Chao Qiang
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  2. Guo-Hua Sun
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  3. Qian Dong
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  4. Oscar Camacho-Nieto
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  5. Shi-Hai Dong
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Correspondence to Wen-Chao Qiang.

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Qiang, WC., Sun, GH., Dong, Q. et al. Concurrence of three Jaynes–Cummings systems. Quantum Inf Process 17, 90 (2018). https://doi.org/10.1007/s11128-018-1851-8

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  • DOI: https://doi.org/10.1007/s11128-018-1851-8

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