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arXiv · 1601.02951

Topological quasi-one-dimensional state of interacting spinless electrons

G. Sun·T. Vekua
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Abstract

By decreasing the transversal confinement potential in interacting one-dimensional spinless electrons and populating the second energetically lowest sub-band, for not too strong interactions system transitions into a quasi-one-dimensional state with dominant superconducting correlations and one gapless mode. By combining effective field theory approach and numerical density matrix renormalization group simulations we show that this quasi-one-dimensional state is a topological state that hosts zero-energy edge modes. We also study the single-particle correlations across the interface between this quasi-one-dimensional and single-channel states.

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G. Sun, T. Vekua. 2016-05-24. Topological quasi-one-dimensional state of interacting spinless electrons. https://doi.org/10.1103/physrevb.93.205137

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