Realizing Quantum Controlled Phase Flip through Cavity-QED

Authors:
  • YXYun-Feng Xiao
    Yun-Feng Xiao
  • XLXiu-Min Lin
    Xiu-Min Lin
  • JGJie Gao
    Jie Gao
  • YYYong Yang
    Yong Yang
  • ZHZheng-Fu Han
    Zheng-Fu Han
  • GGGuang-Can Guo
    Guang-Can Guo
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Abstract
We propose a scheme to realize quantum controlled phase flip (CPF) between two rare earth ions embedded in respective microsphere cavity via interacting with a single-photon pulse in sequence. The numerical simulations illuminate that the CPF gate between ions is robust and scalable with extremely high fidelity and low error rate. Our scheme is more applicable than other schemes presented before based on current laboratory cavity-QED technology, and it is possible to be used as an applied unit gate in future quantum computation and quantum communication.