AI 中文总结
该研究在对称约束势中发现由虚势屏障诱导的非厄米动力学隧穿机制，通过3×3矩阵模型解析其本质，提出光波导装置用于实验观测，揭示了与实屏障隧穿不同的布居演化规律。
AI 中文摘要
我们在对称约束势中识别出由局域吸收区域诱导的动力学隧穿的非厄米对应物。该吸收区域由虚势屏障描述，诱导出具有一对长寿命态的有效双势阱结构，这对态在屏障中的布居极少。与通过实屏障的周期性隧穿振荡不同，该系统会缓慢演化至两侧布居相等，而吸收区域仅保持弱布居。我们在两种连续势中演示了这一通用机制，并在最小3×3矩阵模型中解析地捕捉其本质。我们提出了一个现实的光波导装置用于该效应的实验观测。
英文摘要
We identify a non-Hermitian counterpart of dynamical tunnelling induced by a localised absorbing region in a symmetric confining potential. The absorbing region, described by an imaginary potential barrier, induces an effective double-well structure with a pair of long-lived states that have little population in the barrier. In contrast to the periodic tunnel oscillations through a real barrier, the system slowly evolves towards equal population of the two sides, while the absorbing region remains only weakly populated. We demonstrate this generic mechanism in two continuous potentials, and capture its essence analytically in a minimal $3\times 3$ matrix model. We propose a realistic optical waveguide setup for the experimental observation of the effect.
Comments6 pages 5 figures, comments welcome
