Few-body bound topological and flat-band states in a Creutz ladder
G. Pelegrí,
S. Flannigan,
A. J. Daley
Abstract:We investigate the properties of a few interacting bosons in a Creutz ladder, which has become a standard model for topological systems, and which can be realized in experiments with cold atoms in optical lattices. At the single-particle level, this system may exhibit a completely flat energy landscape with nontrivial topological properties. In this scenario, we identify topological two-body edge states resulting from the bonding of single-particle edge and flat-band states. We also explore the formation of tw… Show more
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