论文标题
在驱动的量子旋转液体中的分数化细度
Fractionalized Prethermalization in a Driven Quantum Spin Liquid
论文作者
论文摘要
受周期性驱动的量子自旋液体由于其新兴的分数化准粒子而表现出迷人的非平衡加热行为。在这里，我们研究了一个驱动的Kitaev Honeycomb模型，并检查了新兴Majorana Matter和$ Z_2 $通量激发的动态。我们发现了一个独特的两步加热配置文件$ \ textrm { - } $称为分数化的预毛级化$ \ textrm { - } $和一个准平台状态，对于物质和通量扇区的温度差异很大。我们认为，这种特殊的细能性行为是分数化的结果。此外，我们讨论了一种实验可行的方案，该方案用于制备具有低能密度的KiteAV蜂窝模型的零升初始状态，可用于观察量子信息处理平台中的分数化细度。
Quantum spin liquids subject to a periodic drive can display fascinating non-equilibrium heating behavior because of their emergent fractionalized quasi-particles. Here, we investigate a driven Kitaev honeycomb model and examine the dynamics of emergent Majorana matter and $Z_2$ flux excitations. We uncover a distinct two-step heating profile $\textrm{--}$ dubbed fractionalized prethermalization $\textrm{--}$ and a quasi-stationary state with vastly different temperatures for the matter and the flux sectors. We argue that this peculiar prethermalization behavior is a consequence of fractionalization. Furthermore, we discuss an experimentally feasible protocol for preparing a zero-flux initial state of the Kiteav honeycomb model with a low energy density, which can be used to observe fractionalized prethermalization in quantum information processing platforms.
