Interaction induced topological protection in one-dimensional conductors

Nikolaos Kainaris, Raul A. Santos, D. B. Gutman, Sam T. Carr

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


We discuss two one-dimensional model systems – the first is a single channel quantum wire with Ising anisotropy, while the second is two coupled helical edge states. We show that the two models are governed by the same low energy effective field theory, and interactions drive both systems to exhibit phases which are metallic, but with all single particle excitations gapped. We show that such states may be either topological or trivial; in the former case, the system demonstrates gapless end states, and insensitivity to disorder.

Original languageEnglish
Article number1600054
JournalFortschritte der Physik
Issue number6-8
StatePublished - Jun 2017

Bibliographical note

Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim


The authors acknowledge support from the Israeli Ministry of Science and the Carl-Zeiss-Stiftung.

FundersFunder number
Israeli Ministry of Science


    • Disorder
    • One dimensional
    • Strongly correlated electrons
    • Topological insulator


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