利用周期驱动场控制产生相干物质流
Controlled generation of coherent matter-currents using a periodic driving field
摘要：
研究了强振荡驱动场对超冷玻色子在光晶格中动力学行为的影响。模拟系统作为一个玻色-哈伯德模型，我们展示了如何驱动场可以用来产生和维持一个相干的原子电流通过控制相位的位间隧穿过程。我们使用Floquet理论研究了频闪和时间平均行为，并证明该过程提供了一种稳定且精确的控制相干量子系统的方法。
英文摘要：
We study the effect of a strong, oscillating driving field on the dynamics of ultracold bosons held in an optical lattice. Modeling the system as a Bose-Hubbard model, we show how the driving field can be used to produce and maintain a coherent atomic current by controlling the phase of the intersite tunneling processes. We investigate both the stroboscopic and time-averaged behavior using Floquet theory, and demonstrate that this procedure provides a stable and precise method of controlling coherent quantum systems.
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