发表机构
Institute for Basic Science (IBS); Korea University of Science and Technology (UST); Kyungpook National University; Pukyong National University; Hanyang University; Technische Universität Chemnitz（基础科学研究院; 韩国科学技术院; 庆北国立大学; 釜庆国立大学; 汉阳大学; 开姆尼茨工业大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究揭示了开放混沌螺旋形微腔中共振态临界线局域化的机制，将非厄米皮肤效应概念扩展至相空间，为相关物理现象提供了理论解释。
AI 中文摘要
与完全混沌系统的半经典预期相反，在开放微腔中，共振态的局域化被发现是一种常见特征。在螺旋形介质微腔中，相当一部分共振态在实空间的多边形图案上局域化，具有手征性，且其动量分布在全内反射的临界线附近积累。尽管已有大量研究，解释其显著丰度的物理机制仍是一个长期存在的问题。针对这一点，我们揭示了非均匀损耗的Hatano-Nelson模型与螺旋形微腔的介质相空间之间的物理对应关系。我们证明，几何诱导的动量漂移与折射逃逸的结合，会在相空间动量中产生广义非厄米皮肤效应。我们将该机制确定为开放混沌螺旋形微腔中共振态临界线局域化的起源，将皮肤效应的概念从非互易晶格扩展到相空间及开放混沌波系统。
英文摘要
Contrary to the semiclassical expectation for fully chaotic systems, localization of resonances is found to be a common feature in open microcavities. In spiral-shaped dielectric microcavities, a substantial fraction of resonances localize on polygonal patterns in real space, are chiral, and their momentum distributions accumulate near the critical line for total internal reflection. Despite the extensive investigation, the physical mechanism responsible for their remarkable abundance has remained a long-standing question. Addressing this, we reveal a physical correspondence between an inhomogeneous-loss Hatano-Nelson model and the dielectric phase space of a spiral microcavity. We show that the combination of geometry-induced momentum drift and refractive escape yields a generalized non-Hermitian skin effect in the phase space momentum. We identify this mechanism as the origin of the critical-line localization of resonances in open chaotic spiral microcavities, extending the skin-effect concept beyond nonreciprocal lattices to phase space and to open chaotic wave systems.
Comments22 pages, 14 figures
