2007/04/30 by J. Peguiron, Christoph Bruder, C. Bruder +2 · 1 citation
Physics and Astronomy · #Amplitude #Biasing #Condensed matter physics #Coulomb #Drag #Electron #Luttinger liquid #Mechanics #Physics #Physics of Superconductivity and Magnetism #Plasmon #Quantum #Quantum and electron transport phenomena #Quantum mechanics #Quantum wire #Semiconductor Quantum Structures and Devices #Voltage #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevlett.99.086404
published as Phys. Rev. Lett. 99, 086404 (2007) · 5 pages, 5 figures; v2: accepted version at PRL
arxiv created 2007/07/16 · openalex publication_date 2007/08/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We evaluate the Coulomb drag current in two finite-length Tomonaga-Luttinger-liquid wires coupled by an electrostatic backscattering interaction. The drag current in one wire shows oscillations as a function of the bias voltage applied to the other wire, reflecting interferences of the plasmon standing waves in the interacting wires. In agreement with this picture, the amplitude of the current oscillations is reduced with increasing temperature. This is a clear signature of non-Fermi-liquid physics because for coupled Fermi liquids the drag resistance is always expected to increase as the temperature is raised.