Topological inheritance in half-SSH Hubbard models

Abstract

The interplay between interparticle interactions and topological features may result in unusual phenomena. Interestingly, interactions may induce topological features in an originally trivial system, as we illustrate for the case of a one-dimensional two-component Hubbard model in which one component is subjected to Su-Schrieffer-Heeger(SSH) dimerization, whereas the other one is not. We show that due to inter-component interactions the topological properties of one component are induced in the originally trivial one. Although for large interactions topological inheritance may be readily explained by on-site pairing, we show that the threshold for full inheritance occurs at weak interactions, for which the components are not yet paired. We illustrate this inheritance by discussing both bulk and edge properties, as well as dynamical observables as mean chiral displacement and charge pumping.

5 pages, 5 figures

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Cited by in corpus (10)

• Stabilization of Hubbard-Thouless pumps through nonlocal fermionic repulsion
• Signatures of non-trivial pairing in the quantum walk of two-component bosons
• Phonon-induced breakdown of Thouless pumping in the Rice-Mele-Holstein model
• Topological phases of the interacting Su-Schrieffer-Heeger model: An analytical study
• Two component quantum walk in one-dimensional lattice with hopping imbalance
• Interaction driven topological phase transitions of hardcore bosons on a two-leg ladder
• Quantized Thouless pumps protected by interactions in dimerized Rydberg tweezer arrays
• Quantum phases of constrained bosons on a two-leg Bose-Hubbard ladder
• Edge state behavior in a Su-Schrieffer-Heeger like model with periodically modulated hopping
• Topological phases of bosons with local parity coupling on a dimerized lattice