Dynamic control of 2D non-Hermitian photonic corner skin modes in synthetic dimensions.

ABSTRACT: Non-Hermitian models describe the physics of ubiquitous open systems with gain and loss. One intriguing aspect of non-Hermitian models is their inherent topology that can produce intriguing boundary phenomena like resilient higher-order topological insulators (HOTIs) and non-Hermitian skin effects (NHSE). Recently, time-multiplexed lattices in synthetic dimensions have emerged as a versatile platform for the investigation of these effects free of geometric restrictions. Despite holding broad applications, studies of these effects have been limited to static cases so far, and full dynamical control over the non-Hermitian effects has remained elusive. Here, we demonstrate the emergence of topological non-Hermitian corner skin modes with remarkable temporal controllability and robustness in a

SUBMITTER: Zheng X 

PROVIDER: S-EPMC11686390 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature