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Coherent control with user-defined passage
Quantum Science and Technology ( IF 6.7 ) Pub Date : 2021-01-20 , DOI: 10.1088/2058-9565/abd5ca
Bao-Jie Liu 1, 2 , Man-Hong Yung 2, 3, 4, 5
Affiliation  

Stimulated Raman adiabatic passage (STIRAP) is a standard technique to combat experimental imperfections and can be used to realize robust quantum state control, which has many applications in physics, chemistry, and beyond. However, STIRAP is susceptible to decoherence since it requires long evolution time. To overcome this problem, stimulated Raman ‘user-defined’ passage (STIRUP) is proposed, which allows users to design the passages unlike the STIRAP but fast and robust against both decoherence and experimental imperfections. Here, we further develop a more general STIRUP method. Comparing with shortcut to adiabaticity and its’ variants, the generalized STIRUP is more simpler and compatible with more complex energy-level structure and many-body systems. Furthermore, the generalized STIRUP has many important applications such as geometric phase measurement, coherent population transfer, and quantum state preparation. Specifically, as examples, we show how to realize the high-fidelity quantum state transfer and entangled state generation in a robust way via STIRUP with the state-of-the-art experimental superconducting circuits.



中文翻译:

通过用户定义的通道进行连贯控制

受激拉曼绝热通道(STIRAP)是一种对抗实验缺陷的标准技术,可用于实现鲁棒的量子态控制,在物理,化学等领域都有许多应用。但是,STIRAP很容易退相干,因为它需要较长的演化时间。为克服此问题,提出了受激拉曼“用户定义”通道(STIRUP),该通道允许用户设计与STIRAP不同的通道,但可以快速,强大地抵抗退相干和实验缺陷。在这里,我们进一步开发了一种更通用的STIRUP方法。与绝热及其变种的快捷方式相比​​,广义的STIRUP更简单,并且与更复杂的能级结构和多体系统兼容。此外,广义的STIRUP具有许多重要的应用,例如几何相位测量,相干种群转移和量子态制备。具体来说,作为示例,我们展示了如何使用最新的实验超导电路通过STIRUP来以鲁棒的方式实现高保真量子态转移和纠缠态生成。

更新日期:2021-01-20
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