AI 中文总结
研究囚禁离子量子逻辑中因弱耦合和谐波动力学对门时间有限制的问题,通过设计最优驱动方案,利用非谐动力学实现快速高保真纠缠门,并增强对系统缺陷的抗性。
AI 中文摘要
囚禁离子的纠缠门通常由集体运动自由度介导。量子比特与运动自由度之间的弱耦合以及由此产生的谐波动力学允许采用多种门方案,但也对可实现的门时间施加了严格限制。本文设计了最优驱动方案,以实现由非谐动力学介导的快速、高保真纠缠门。驱动还可优化以实现对多种系统缺陷的抗性,且运动动力学中的非谐性可用于增强这种抗性。
英文摘要
Entangling gates of trapped ions are typically mediated by collective motional degrees of freedom. Weak coupling between qubit and motional degrees of freedom and the resulting harmonic dynamics give access to a broad range of gate schemes, but also impose strict limitations on achievable gate times. In this paper, we devise optimally designed driving schemes for the realization of fast, high-fidelity entangling gates mediated by anharmonic dynamics. The driving can also be optimized to achieve resilience to multiple system imperfections, and the anharmonicity in the motional dynamics can be used to enhance such resilience.