Topological edge states in two-gap unitary systems: a transfer matrix approach
Topological edge states in two-gap unitary systems: a transfer matrix approach
We construct and investigate a family of two-band unitary systems living on a cylinder geometry and presenting localized edge states. Using the transfer matrix formalism, we solve and investigate in details such states in the thermodynamic limit. Analitycity considerations then suggest the construction of a family of Riemman surfaces associated …