Regensburg 2004 – wissenschaftliches Programm
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SYNF: Non-Fermi Liquids in Quantum Structures
SYNF 1: Non-Fermi Liquids in Quantum Structures
SYNF 1.1: Hauptvortrag
Donnerstag, 11. März 2004, 15:00–15:35, H 1
Coulomb Drag Between Quantum Wires: Beyond Tomonaga-Luttinger Model — •Leonid Glazman — Theoretical Physics Institute, University of Minnesota, Minneapolis, Minnesota 55455, USA
We demonstrate that in a wide range of temperatures, Coulomb drag between two weakly coupled quantum wires is dominated by processes with a small interwire momentum transfer. Such processes, not accounted for in the conventional Luttinger liquid theory, contribute to drag only because the electron dispersion relation is not linear. The corresponding contribution to the drag resistance scales with temperature as T2 if the wires are identical, and as T5 if the wires are different.