title: Topological filters and high-pass/low-pass devices for solitons in inhomogeneous networks.
abstract: We show that, by inserting suitable finite networks at a site of a chain, it is possible to realize filters and high-pass/low-pass devices for solitons propagating along the chain. The results are presented in the framework of coupled optical waveguides; possible applications to different contexts, such as photonic lattices and Bose-Einstein condensates in optical networks are also discussed. Our results provide a first step in the control of the soliton dynamics through the network topology.
authors.affiliation: Dipartimento di Fisica and I.N.F.N., Università di Parma, parco Area delle Scienze 7A, Parma I-43100, Italy.
authors.forename: R
authors.initials: R
authors.lastname: Burioni
authors.forename: D
authors.initials: D
authors.lastname: Cassi
authors.forename: P
authors.initials: P
authors.lastname: Sodano
authors.forename: A
authors.initials: A
authors.lastname: Trombettoni
authors.forename: A
authors.initials: A
authors.lastname: Vezzani