论文标题
浮光量的浮球和拉比振荡在光学激发哈伯德群集中
Floquet prethermalization and Rabi oscillations in optically excited Hubbard clusters
论文作者
论文摘要
我们研究了在连续的光激发下，研究二维Mott构造哈伯德群集的浮球细头状态的性质。通过精确的二进制模拟，我们表明，浮球前状态不仅存在共鸣，而且出于共鸣激发，提供了一个小的田地幅度。在共鸣的情况下，长寿命的准平稳浮子状态的特征是可观察到的可观察到的小占用和动能等可观察到的振荡。在较强的田地，观察到无限温度的热化。我们根据光学驱动的两端哈伯德模型以及时间依赖性的扰动理论理解这些结果。
We study the properties of Floquet prethermal states in two-dimensional Mott-insulating Hubbard clusters under continuous optical excitation. With exact-diagonalization simulations, we show that Floquet prethermal states emerge not only off resonance, but also for resonant excitation, provided a small field amplitude. In the resonant case, the long-lived quasi-stationary Floquet states are characterized by Rabi oscillations of observables such as double occupation and kinetic energy. At stronger fields, thermalization to infinite temperature is observed. We understand these results in terms of the optically driven two-site Hubbard model and by means of time-dependent perturbation theory.
