基于绝热捷径的两原子相位门设计

Construct Shortcuts to Adiabatic Passage for the Implementation of Phase Gates in a Two-atom System

基于绝热捷径技术,我们提出了一个通过设计共振脉冲,仅用一个操作步骤便实现两原子相位门的理论方案。我们讨论了原子自发辐射和腔中光子泄漏对方案的影响,数值结果表明当前方案对上面的两种耗散效应和试验参数的误差都具有鲁棒性。此外,本方案所需的演化时间非常短并且在整个演化过程中都不需要额外引入复杂的脉冲。因此,这个方案在当前实验条件下是比较容易实现的。

Based on the shortcuts to adiabatic technique, we propose a scheme for one-step implementation discussed. Numerical results show that the scheme is insensitive to both error sources and variations of the parameters. Moreover, the interaction time in the scheme is very short and no extra complex laser pulses are needed during the whole process. Therefore, the scheme is easy to be implemented with present experimental techniques.