【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.