Two-body physics in the Su-Schrieffer-Heeger model
Abstract
We consider two interacting bosons in a dimerized Su-Schrieffer-Heeger (SSH) lattice. We identify a rich variety of two-body states. In particular, for open boundary conditions and moderate interactions, edge bound states (EBS) are present even for the dimerization that does not sustain single-particle edge states. Moreover, for large values of the interactions, we find a breaking of the standard bulk-boundary correspondence. Based on the...
Paper Details
Title
Two-body physics in the Su-Schrieffer-Heeger model
Published Date
Dec 22, 2016
Journal
Volume
94
Issue
6
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