Abstract We propose protocols of loop stimulated Raman shortcut-to-adiabatic passage (STIRSAP) and modified-STIRSAP to speed up the creation of arbitrary high fidelity coherent superposition states ( F ≃ 0 . 999 ). In loop- and modified-STIRSAP protocols, the nonadiabatic coupling between the dark and bright states can be canceled by an additional microwave pulse and modified pump and Stokes pulses, respectively. As a result of dark state rotation, the creation of preselected coherent superposition states can be achieved beyond the adiabatic limit. Compared with the stimulated Raman adiabatic passage (STIRAP) protocol, the evolution time of the creation of coherent superposition states can be shortened. Our numerical calculations agree well with the theoretical analysis in the partial dressed-state picture.

中文翻译：

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通过绝热捷径加速创建相干叠加态

摘要 我们提出了回路受激拉曼绝热捷径 (STIRSAP) 和改良 STIRSAP 的协议，以加速任意高保真相干叠加态 (F ≃ 0 . 999 ) 的创建。在循环和改进的 STIRSAP 协议中，暗态和亮态之间的非绝热耦合可以分别通过额外的微波脉冲和改进的泵浦脉冲和斯托克斯脉冲来抵消。由于暗态旋转，可以在绝热极限之外实现预选相干叠加态的创建。与受激拉曼绝热通道（STIRAP）协议相比，可以缩短相干叠加态产生的演化时间。我们的数值计算与部分穿着状态图片中的理论分析非常吻合。