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Entanglement teleportation via thermal Wannier edge states in a chiral graphene nanoribbon

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Abstract

We investigate the entanglement teleportation via thermal Wannier edge states in a chiral graphene nanoribbon described by the effective Heisenberg model. The results show that in order to realize quantum teleportation the channel entanglement must be larger than a critical minimum value which depends on the entanglement of the initial input state. We also show that the teleportation fidelity is approximately close to the maximum at lower temperature. In particular, if Coulomb repulsion among electrons is smaller than 1.2 eV, the average fidelity will be larger than 2/3 even at room temperature.

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Acknowledgements

We are grateful to Cornelie Koop and Manuel J. Schmidt for illuminating discussions. This work was supported by the National Natural Science Foundation of China (Nos. 51420105003, 11327901, 61274114, and 11525415).

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Authors and Affiliations

  1. SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Collaborative Innovation Center for Micro/Nano Fabrication, Device and System, Southeast University, Nanjing, 210096, People’s Republic of China

    Xiao-Dong Tan, Xiao-Ping Liao & Litao Sun

  2. Center for Advanced Carbon Materials, Southeast University and Jiangnan Graphene Research Institute, Changzhou, 213100, People’s Republic of China

    Litao Sun

  3. Center for Advanced Materials and Manufacture, Joint Research Institute of Southeast University and Monash University, Suzhou, 215123, People’s Republic of China

    Litao Sun

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  1. Xiao-Dong Tan
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Correspondence to Litao Sun.

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Tan, XD., Liao, XP. & Sun, L. Entanglement teleportation via thermal Wannier edge states in a chiral graphene nanoribbon. Quantum Inf Process 16, 114 (2017). https://doi.org/10.1007/s11128-017-1563-5

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