Regensburg 2004 – wissenschaftliches Programm
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TT: Tiefe Temperaturen
TT 24: Postersitzung III: Korrelierte Elektronen, ”Orbital Physics”
TT 24.9: Poster
Mittwoch, 10. März 2004, 14:30–19:00, Poster A
Scaling of the conductance in interacting quantum wires — •Tilman Enss1, Sabine Andergassen1, Volker Meden2, Walter Metzner1, Ulrich Schollwöck3, and Kurt Schönhammer2 — 1Max-Planck-Institut für Festkörperforschung, D-70569 Stuttgart — 2Institut für Theoretische Physik, Universität Göttingen, D-37073 Göttingen — 3Sektion Physik, Universität München, Theresienstr. 37, D-80333 München
The conductance through an interacting nanowire containing impurities and coupled to non-interacting leads is studied at zero and finite temperature. Our functional RG method starts from the microscopical model and arrives at an effective low-energy model correctly showing Luttinger liquid behavior. For a single impurity we observe one-parameter scaling of the conductance. Using several impurities, we study resonances of the conductance and temperature-dependent transport through a quantum dot.