Network models of photonic Floquet topological insulators
Network models of photonic Floquet topological insulators
A recently proposed class of photonic topological insulators is shown to map onto Chalker-Coddington-type networks, which were originally formulated to study disordered quantum Hall systems. Such network models are equivalent to the Floquet states of periodically driven lattices. We show that they can exhibit topologically protected edge states even if …