论文标题
与用户定义的段落相干控制
Coherent Control with User-Defined Passage
论文作者
论文摘要
刺激的拉曼绝热通道（Stirap）是对抗实验缺陷的标准技术，可用于实现强大的量子状态控制，该量子状态控制在物理，化学及其他方面具有许多应用。但是，由于需要长时间的演变时间，因此搅拌容易发生逆转。为了克服这个问题，提出了刺激的拉曼用户定义的段落（搅拌），该段落允许用户设计与搅拌不同的段落，但可以快速且坚固，可以在变质和实验性瑕疵上。在这里，我们进一步开发了一种更通用的搅拌方法。与快捷方式与绝热性及其“变体相比，广义搅拌更简单，并且与更复杂的能量水平结构和许多体系更加兼容。此外，广义搅拌具有许多重要的应用，例如几何相测量，相干种群转移和量子状态制备。具体而言，作为示例，我们展示了如何通过搅拌与最先进的实验性超导电路以稳健的方式实现高保真量子状态转移和纠缠状态。
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 manybody 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.
