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【凝聚态物理-北京大学论坛 2025年第21期(总632期)】Nonreciprocity-enriched phases of open quantum systems

发布日期:2025-10-22   点击数:

主讲人: 汪忠教授 清华大学
地点: 物理大楼中212报告厅
时间: 2025年10月23日(周四)下午3:00-4:30
主持 联系人: 赵宏政 hzhao@pku.edu.cn
主讲人简介: 报告人简介 (About speaker):Zhong Wang is a Professor of Physics at Tsinghua University. He earned his bachelor's degree (2005) and doctor's degree (2011) from the University of Science and Technology of China. From 2009 to 2010, he was a Visiting Scholar at Stanford University. He joined the Institute for Advanced Study at Tsinghua University in 2011, where his research spans condensed matter physics with broad interdisciplinary interests, currently focusing on quantum many-body physics, non-Hermitian physics, and open quantum systems.

摘要 (Abstract) This talk is structured in two parts. We begin by introducing key concepts in non-Hermitian physics, with a special focus on the non-Hermitian skin effect (NHSE)—a hallmark phenomenon rooted in nonreciprocity that leads to the exponential localization of bulk states at boundaries. After reviewing its dynamical consequences, we present our recent work on nonreciprocity-enriched phases in open quantum systems. Although nonreciprocity and the NHSE are known to drive unconventional dynamics, their influence on steady-state phases has remained elusive. We demonstrate that the interplay between nonreciprocity and boundary conditions fundamentally reshapes the phase landscape, giving rise to novel nonequilibrium states with distinct spatiotemporal order.


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