Understanding inter-site mutual mode interaction in coupled physical systems is essential to comprehend large compound systems, as this local interaction determines the successive multiple inter-site energy transfer efficiencies. In the present study, we demonstrate that only the non-Hermitian coupling can correctly account for the light transfer between two coupled optical cavities. We also reveal that the non-Hermitian coupling effect becomes crucial as the system dimension decreases. Our results provide important insight for handling general-coupled devices in the subwavelength regime.

中文翻译：

---

非厄米模式相互作用对腔间光传输的影响

了解耦合物理系统中的站点间相互模式相互作用对于理解大型复合系统至关重要，因为这种局部相互作用决定了连续的多个站点间能量转移效率。在本研究中，我们证明只有非厄米特耦合才能正确解释两个耦合光学腔之间的光传输。我们还揭示了随着系统尺寸的减小，非厄米耦合效应变得至关重要。我们的结果为处理亚波长范围内的通用耦合器件提供了重要的见解。