标题： 两级原子在周期场中的强耦合理论 显示英文标题

标题： Strong Coupling Theory of Two Level Atoms in Periodic Fields

摘要： 我们提出了一种新的收敛强耦合展开方法，用于外部周期场中的两能级原子，该方法避免了长期项。 作为第一个应用，我们表明隧穿的相干破坏是一个三阶效应。 我们还提出了高频区域的精确处理，并将其与平均理论进行比较。 跃迁概率振幅的定性频率谱包含一个有效里比频率。 显示英文摘要

摘要： We present a new convergent strong coupling expansion for two-level atoms in external periodic fields, free of secular terms. As a first application, we show that the coherent destruction of tunnelling is a third-order effect. We also present an exact treatment of the high-frequency region, and compare it with the theory of averaging. The qualitative frequency spectrum of the transition probability amplitude contains an effective Rabi frequency.