论文标题
电场驱动的MBL在相互作用的远程跳跃模型中的稳定性
Stability of electric-field-driven MBL in an interacting long range hopping model
论文作者
论文摘要
我们研究了经受过电场（静态和时间周期性）以及较慢变化的附近电势的系统中远程跳跃（$ \ sim 1/r^σ$）的命运（MBL）。我们表明，静态电场模型中的MBL与其他无序模型形成鲜明对比的任意远距离跳跃具有鲁棒性，在这种模型中，MBL被足够长的远距离跳跃杀死。接下来，我们表明与AC方波电场相关的驱动诱导的现象也与远程跳跃相关。具体而言，我们获得了驱动诱导的MBL，高频驱动器可以将厄牛相转换为MBL相。值得注意的是，我们发现MBL的连贯破坏也可能借助共振驱动器。因此，在静态和时间周期的方波电场模型中，系统的定性特性独立于跳跃是短距离还是远程。
We study the fate of many-body localization (MBL) in the presence of long-range hopping ($\sim 1/r^σ$) in a system subjected to an electric field (static and time-periodic) along with a slowly-varying aperiodic potential. We show that the MBL in the static electric-field model is robust against arbitrary long-range hopping in sharp contrast to other disordered models, where MBL is killed by sufficiently long-range hopping. Next, we show that the drive-induced phenomena associated with an ac square wave electric field are also robust against long-range hopping. Specifically, we obtain drive-induced MBL, where a high-frequency drive can convert the ergodic phase into the MBL phase. Remarkably, we find that coherent destruction of MBL is also possible with the aid of a resonant drive. Thus in both the static and time-periodic square wave electric field models, the qualitative properties of the system are independent of whether the hopping is short-ranged or long-ranged.
