Phase rotation symmetry and the topology of oriented scattering networks
Phase rotation symmetry and the topology of oriented scattering networks
We investigate the topological properties of dynamical states evolving on periodic oriented graphs. This evolution, which encodes the scattering processes occurring at the nodes of the graph, is described by a single-step global operator, in the spirit of the Ho-Chalker model. When the successive scattering events follow a cyclic sequence, …