中国物理B ›› 2022, Vol. 31 ›› Issue (2): 20305-020305.doi: 10.1088/1674-1056/ac2f2e

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Change-over switch for quantum states transfer with topological channels in a circuit-QED lattice

Liu-Yong Cheng(程留永)1,2,†, Li-Na Zheng(郑黎娜)1, Ruixiang Wu(吴瑞祥)1,2, Hong-Fu Wang(王洪福)3, and Shou Zhang(张寿)3   

  1. 1 School of Physics and Information Engineering, Shanxi Normal University, Linfen 041004, China;
    2 Key Laboratory of Spectral Measurement and Analysis of Shanxi Province, Shanxi Normal University, Linfen 041004, China;
    3 Department of Physics, College of Science, Yanbian University, Yanji 133002, China
  • 收稿日期:2021-08-27 修回日期:2021-09-23 接受日期:2021-10-13 出版日期:2022-01-13 发布日期:2022-01-18
  • 通讯作者: Liu-Yong Cheng E-mail:lycheng@sxnu.edu.cn

Change-over switch for quantum states transfer with topological channels in a circuit-QED lattice

Liu-Yong Cheng(程留永)1,2,†, Li-Na Zheng(郑黎娜)1, Ruixiang Wu(吴瑞祥)1,2, Hong-Fu Wang(王洪福)3, and Shou Zhang(张寿)3   

  1. 1 School of Physics and Information Engineering, Shanxi Normal University, Linfen 041004, China;
    2 Key Laboratory of Spectral Measurement and Analysis of Shanxi Province, Shanxi Normal University, Linfen 041004, China;
    3 Department of Physics, College of Science, Yanbian University, Yanji 133002, China
  • Received:2021-08-27 Revised:2021-09-23 Accepted:2021-10-13 Online:2022-01-13 Published:2022-01-18
  • Contact: Liu-Yong Cheng E-mail:lycheng@sxnu.edu.cn

摘要: We propose schemes to realize robust quantum states transfer between distant resonators using the topological edge states of a one-dimensional circuit quantum electrodynamics (QED) lattice. Analyses show that the distribution of edge states can be regulated accordingly with the on-site defects added on the resonators. And we can achieve different types of quantum state transfer without adjusting the number of lattices. Numerical simulations demonstrate that the on-site defects can be used as a change-over switch for high-fidelity single-qubit and two-qubit quantum states transfer. This work provides a viable prospect for flexible quantum state transfer in solid-state topological quantum system.

关键词: quantum states transfer, edge states, change-over switch, circuit quantum electrodynamics (QED) lattice

Abstract: We propose schemes to realize robust quantum states transfer between distant resonators using the topological edge states of a one-dimensional circuit quantum electrodynamics (QED) lattice. Analyses show that the distribution of edge states can be regulated accordingly with the on-site defects added on the resonators. And we can achieve different types of quantum state transfer without adjusting the number of lattices. Numerical simulations demonstrate that the on-site defects can be used as a change-over switch for high-fidelity single-qubit and two-qubit quantum states transfer. This work provides a viable prospect for flexible quantum state transfer in solid-state topological quantum system.

Key words: quantum states transfer, edge states, change-over switch, circuit quantum electrodynamics (QED) lattice

中图分类号:  (Quantum information)

  • 03.67.-a
42.50.Pq (Cavity quantum electrodynamics; micromasers)