当前位置: 首页  学术交流  学术报告

12月7号-物理学科学术报告(郭晨月博士,上海交通大学)

作者:研究生办-苏丽诗  发布者:研究生办-吴瑛   发布时间:2024-12-04  浏览次数:10

【报告题目】:Study of (non-)equilibrium quantum disordered system

【报告时间】:12月7号下午3:30

【报告地点】:29-414

【报告人】:郭晨月博士,上海交通大学

【报告摘要】The study of quantum localization plays an important role in condensed matter physics,  particularly since the discovery of Anderson localization in 1958. Here, we explore the  localization properties of waves in a novel family of quasiperiodic chains that  interpolate between two paradigmatic limits: the Aubry–André model, known for its  metal-to-insulator transition, and the Fibonacci chain, recognized for its critical  properties. This system reveals a range of intermediate phases, each with unique  mobility edges separating distinct states. Additionally, the dynamics of non-equilibrium  have garnered significant interest due to substantial experimental progress. We propose  a stochastic toy model for a non-equilibrium quantum system, where the drivingprotocols consist of hopping and waiting processes. The waiting times between two  hopping processes satisfy a heavy-tailed distribution. By analyzing the time evolution  of the wavepackets, we observe anomalous transport phenomena accompanied by a  breakdown of ergodicity, highlighting the complex behaviors induced by stochastic  driving mechanisms.