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Conductance of fractional Luttinger liquids at finite temperatures
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 4492569
Author(s) Aseev, Pavel P.; Loss, Daniel; Klinovaja, Jelena
Author(s) at UniBasel Klinovaja, Jelena
Loss, Daniel
Year 2018
Title Conductance of fractional Luttinger liquids at finite temperatures
Journal Physical review B: Condensed matter and materials physics
Volume 98
Number 4
Pages / Article-Number 045416
Abstract We study the electrical conductance in single-mode quantum wires with Rashba spin-orbit interaction subjected to externally applied magnetic fields in the regime in which the ratio of spin-orbit momentum to the Fermi momentum is close to an odd integer, so that a combined effect of multi-electron interaction and applied magnetic field leads to a partial gap in the spectrum. We study how this partial gap manifests itself in the temperature dependence of the fractional conductance of the quantum wire. We use two complementing techniques based on bosonization: refermionization of the model at a particular value of the interaction parameter and a semiclassical approach within a dilute soliton gas approximation of the functional integral. We show how the low-temperature fractional conductance can be affected by the finite length of the wire, by the properties of the contacts, and by a shift of the chemical potential, which takes the system away from the resonance condition. We also predict an internal resistivity caused by a dissipative coupling between gapped and gapless modes.
Publisher American Physical Society
ISSN/ISBN 1098-0121 ; 1550-235X
edoc-URL https://edoc.unibas.ch/67789/
Full Text on edoc No
Digital Object Identifier DOI 10.1103/PhysRevB.98.045416
ISI-Number 000438675400009
Document type (ISI) Article
 
   

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