\begin{document}$ - \left| {11} \right\rangle $\end{document} state can be obtained by system evolution when the initial state is \begin{document}$ \left| {11} \right\rangle $\end{document}, while the system does not change at all when the other initial states are prepared. Furthermore, the controlled phase gate with high-fidelity can be obtained . It is shown that the fidelity of the controlled phase gate is stable and greater than 0.991 when the evolution time is greater than \begin{document}$0.7{t \mathord{\left/ {\vphantom {t {{t_f}}}} \right. } {{t_{\rm f}}}}$\end{document}. In addition, the proposed scheme can accelerate the evolution and is robust to decoherence. By the resonator decay and the spontaneous emission and dephasing of qubit, the final fidelity of the controlled phase gate is greater than 0.984. Since the controlled phase gate does not need additional parameters, the propsoed scheme is feasible in experiment."> Implementation of controlled phase gate based on superadiabatic shortcut in circuit quantum electrodynamics - 必威体育下载

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Wang Xue-Mei, Zhang An-Qi, Zhao Sheng-Mei
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  • Abstract views:3534
  • PDF Downloads:80
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Publishing process
  • Received Date:08 February 2022
  • Accepted Date:13 March 2022
  • Available Online:25 July 2022
  • Published Online:05 August 2022

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