Long-range-interacting topological photonic lattices breaking channel-bandwidth limit

https://phys.org/news/2024-09-range-interacting-topological-photonic-lattices.html

"noise-resistant topologically protected light... trade-off relation between number of signal channels/ channel bandwidth determined by lattice bandgap, prohibits increasing total information capacity... overcome using long-range interactions enabling overlapping lattice structures within 2D plane, tailoring Chern number topological invariants while preserving original lattice band-gap/ topologically-protected edge modes... models higher-dimensional physics on 2D plane, enabling topological phenomena in complex networks"