Topological Protection from Random Rashba Spin-Orbit Backscattering: Ballistic Transport in a Helical Luttinger Liquid

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dc.citation.articleNumber86603
dc.citation.issueNumber8
dc.citation.journalTitlePhysical Review Letters
dc.citation.volumeNumber116
dc.contributor.authorXie, Hong-Yi
dc.contributor.authorLi, Heqiu
dc.contributor.authorChou, Yang-Zhi
dc.contributor.authorFoster, Matthew S.
dc.contributor.orgRice Center for Quantum Materials
dc.date.accessioned2017-05-09T20:16:07Z
dc.date.available2017-05-09T20:16:07Z
dc.date.issued2016
dc.description.abstractThe combination of Rashba spin-orbit coupling and potential disorder induces a random current operator for the edge states of a 2D topological insulator. We prove that charge transport through such an edge is ballistic at any temperature, with or without Luttinger liquid interactions. The solution exploits a mapping to a spin 1/2 in a time-dependent field that preserves the projection along one randomly undulating component (integrable dynamics). Our result is exact and rules out random Rashba backscattering as a source of temperature-dependent transport, absent integrability-breaking terms.
dc.identifier.citationXie, Hong-Yi, Li, Heqiu, Chou, Yang-Zhi, et al.. "Topological Protection from Random Rashba Spin-Orbit Backscattering: Ballistic Transport in a Helical Luttinger Liquid." <i>Physical Review Letters,</i> 116, no. 8 (2016) American Physical Society: https://doi.org/10.1103/PhysRevLett.116.086603.
dc.identifier.doihttps://doi.org/10.1103/PhysRevLett.116.086603
dc.identifier.urihttps://hdl.handle.net/1911/94220
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.titleTopological Protection from Random Rashba Spin-Orbit Backscattering: Ballistic Transport in a Helical Luttinger Liquid
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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