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Journal Article

Topological quasi-one-dimensional state of interacting spinless electrons

MPS-Authors
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Sun,  G. Y.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

Fulltext (public)

1601.02951.pdf
(Preprint), 324KB

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Citation

Sun, G. Y., & Vekua, T. (2016). Topological quasi-one-dimensional state of interacting spinless electrons. Physical Review B, 93(20): 205137. doi:10.1103/PhysRevB.93.205137.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002A-E9CD-B
Abstract
By decreasing the transversal confinement potential in interacting one-dimensional spinless electrons and populating the second energetically lowest subband 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 these quasi-one-dimensional and single-channel states.