中国物理B ›› 2009, Vol. 18 ›› Issue (8): 3258-3264.doi: 10.1088/1674-1056/18/8/028

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Three-qubit Fredkin gate based on cavity quantum electrodynamics

邵晓强2, 张寿3   

  • 收稿日期:2008-10-30 修回日期:2008-12-02 出版日期:2009-08-20 发布日期:2009-08-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 60667001).

Three-qubit Fredkin gate based on cavity quantum electrodynamics

Shao Xiao-Qiang(邵晓强)a), Chen Li(陈丽)b), and Zhang Shou(张寿)a)b)†   

  1. a Center for Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, China; b Department of Physics, College of Science, Yanbian University, Yanji 133002, China
  • Received:2008-10-30 Revised:2008-12-02 Online:2009-08-20 Published:2009-08-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 60667001).

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摘要： This paper presents a scheme for implementing a Fredkin gate on three modes of a cavity. The scheme is based on the dispersive atom-cavity interaction. By modulating the cavity frequency and the atomic transition frequency appropriately, it obtains the effective form of nonlinear interaction between photons in the three-mode cavity. This availability is testified via numerical analysis. It also considers both the situations with and without dissipation.

Abstract: This paper presents a scheme for implementing a Fredkin gate on three modes of a cavity. The scheme is based on the dispersive atom-cavity interaction. By modulating the cavity frequency and the atomic transition frequency appropriately, it obtains the effective form of nonlinear interaction between photons in the three-mode cavity. This availability is testified via numerical analysis. It also considers both the situations with and without dissipation.

Key words: Fredkin gate, cavity quantum electrodynamics

中图分类号:  (Cavity quantum electrodynamics; micromasers)

  • 42.50.Pq
02.60.-x (Numerical approximation and analysis) 03.67.Lx (Quantum computation architectures and implementations)