论文标题
Floquet-Landau-Zener干涉法:Floquet理论在脉冲激光驱动系统中的有用性
Floquet-Landau-Zener interferometry: Usefulness of the Floquet theory in pulse-laser-driven systems
论文作者
论文摘要
我们为瞬时浮力状态(IFSS)开发了Landau-Zener传递矩阵理论,用于由强脉冲激光器驱动的量子系统。将该理论应用于两级量子系统中的脉冲激发概率,我们对几个周期脉冲表现出了出乎意料的良好定量协议。这种方法使我们能够定性地理解概率的特殊行为是IFSS之间的量子路径干扰。我们还研究了脉冲宽度的依赖性,发现这种浮雕状态的解释对于当前模型中的较短脉冲至2周期的脉冲仍然有用。这些结果表明,如果在IFS的意义上适当地应用,则在实验性的几个周期激光器中,浮qu质理论在实验性的几个周期激光器中具有有意义。
We develop the Landau-Zener transfer matrix theory for the instantaneous Floquet states (IFSs) for quantum systems driven by strong pulse lasers. Applying this theory to the pulse excitation probability in two-level quantum systems, we show unexpectedly good quantitative agreements for few-cycle pulses. This approach enables us to qualitatively understand the probability's peculiar behaviors as quantum path interference between IFSs. We also study the pulse-width dependence, finding that this Floquet-state interpretation remains useful for shorter pulses down to 2-cycle ones in the present model. These results imply that the Floquet theory is meaningful in experimental few-cycle lasers if applied appropriately in the sense of IFSs.