Interaction-induced topological properties of two bosons in flat-band systems
G. Pelegrí, A. M. Marques, V. Ahufinger, J. Mompart, R. G. Dias
Abstract
This work explores the properties of two interacting bosons in a flat-band system. The authors show how collective particle motion processes mediated by interactions can lead to a variety of two-body topological states. Furthermore, they identify a set of bound states that remain localized in a small region of the lattice for arbitrarily large interactions.
Topics & Concepts
BosonPhysicsLattice (music)Variety (cybernetics)Theoretical physicsTopology (electrical circuits)Work (physics)Set (abstract data type)Bound stateMotion (physics)Topological defectTopological orderTopological Materials and PhenomenaQuantum Mechanics and Non-Hermitian PhysicsCold Atom Physics and Bose-Einstein Condensates