Dresden 2014 – scientific programme
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TT: Fachverband Tiefe Temperaturen
TT 4: Low-Dimensional Systems: 1D - Theory
TT 4.12: Talk
Monday, March 31, 2014, 12:30–12:45, HSZ 201
Low-energy properties of fractional helical Luttinger liquids — •Tobias Meng1, Lars Fritz2, Dirk Schuricht3, and Daniel Loss1 — 1Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland — 2Institut für Theoretische Physik, Universität zu Köln, Zülpicher Straße 77, 50937 Köln, Germany — 3Institut für Theorie der Statistischen Physik, RWTH Aachen University and JARA - Fundamentals of Future Information Technology, 52056 Aachen, Germany
We discuss how fractional helical Luttinger liquids, a one-dimensional state related to the fractional quantum Hall effect, can emerge as a consequence of an intricate mixing of charge and spin degrees of freedom in a quantum wire. We discuss their unusual low energy physics with an emphasis on their fractional conductance, the optical conductivity and density of states.