论文标题
单一捕获的离子中的非铁皮皮肤效应
Non-Hermitian skin effect in a single trapped ion
论文作者
论文摘要
非铁皮皮肤效应（NHSE）描述了所有本征态朝着非富米特系统中边界的指数定位，并引起了最近的强烈研究兴趣。在这里，我们从理论上提出了一个方案，其中NHSE通过复杂的自旋运动动力学显着影响单个捕获离子的外部运动。一方面，我们展示了NHSE与连贯的Bloch动力学之间的竞争。另一方面，由于NHSE在被占用的声子模式中表现为非重新流动流，因此我们证明了这种动力学可以在冷却和传感中具有潜在的应用。我们的建议可以使用现有的实验技术很容易实施，并为相关的非热物理学提供可扩展的（根据可用离子和声子模式）的仿真平台。
Non-Hermitian skin effect (NHSE) describes the exponential localization of all eigenstates toward boundaries in non-Hermitian systems, and has attracted intense research interest of late. Here we theoretically propose a scheme in which the NHSE significantly impacts the external motion of a single trapped ion through complex spin-motion dynamics. On the one hand, we show the competition between the NHSE and the coherent Bloch dynamics. On the other hand, since the NHSE manifests as a non-reciprocal flow in occupied phonon modes, we demonstrate that such dynamics can have potential applications in cooling and sensing. Our proposal can be readily implemented using existing experimental techniques, and offers a scalable (in terms of the available ions and phonon modes) simulation platform for relevant non-Hermitian physics.
