Phys.org  June 6, 2023 It is highly desirable to be able to control topological edge states (TES) transport in photonic implementations. Enhancing the coupling between the TESs in a finite-size optical lattice can exchange light energy between the boundaries of a topological lattice, hence facilitating the flexible control of TES transport. However, existing strategies have paid little attention to enhancing the coupling effects between the TESs through the finite-size effect. Researchers in China established a bridge linking the interaction between the TESs in a finite-size optical lattice using the Landau–Zener model to provide an alternative way to modulate/control the transport […]