标题： 开放手性系统中奇点的对映体敏感位置 显示英文标题

标题： Enantiosensitive positions of exceptional points in open chiral systems

摘要： 例外点是开放量子系统中的显著特征，例如光电离或光解离分子、光子结构中放大或耗散的光态，以及其他许多情况。 这些点在系统的参数空间中标记光谱简并，此时本征态变得非正交，从而可以精确控制衰减率、在宇称-时间（PT）对称系统中的拓扑转变，或增强系统对外部刺激的敏感性。 在这里，我们表明例外点可以具有对映体敏感性，从而为非厄米开放手性系统的拓扑和手性特性提供一种新型控制方式。 我们将对映体敏感的例外点概念应用于展示一系列现象，从对映体敏感的拓扑种群转移，到手性分子共振光电离中的寿命分支，再到光学纤维中的增强手性传感。 我们的结果在手性辨别和分离中结合了高对映体敏感性和拓扑鲁棒性，为控制非厄米和手性现象提供了新的方法。 显示英文摘要

摘要： Exceptional points are remarkable features of open quantum systems, such as photo-ionizing or photo-dissociating molecules, amplified or dissipated light states in photonic structures, and many others. These points mark spectral degeneracies in a system's parameter space where the eigenstates become non-orthogonal, enabling precise control over decay rates, topological transitions in parity-time (PT)-symmetric systems, or boosting the system's sensitivity to external stimuli. Here we show that exceptional points can be enantiosenstive, enabling a new type of control over topological and chiral properties of non-Hermitian open chiral systems. We apply the concept of enantio-sensitive exceptional points to demonstrate a broad range of phenomena, from enantiosensitive topological population transfer, to lifetime branching in resonant photo-decay of chiral molecules, to enhanced chiral sensing in optical fibers. Our results combine high enantiosensitivity with topological robustness in chiral discrimination and separation, paving the way for new approaches in the control of non-Hermitian and chiral phenomena.