2010/02/28 by Markus Heyl, Stefan Kehrein, Florian Marquardt +1
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.82.033409
published as Phys. Rev. B 82, 033409 (2010) · 5 pages, 3 figures; version as published
openalex publication_date 2010/07/20 · arxiv created 2010/09/10 · arxiv updated 2010/09/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We investigate systems of spinless one-dimensional chiral fermions realized, e.g., in the arms of electronic Mach-Zehnder interferometers, at high energies. Taking into account the curvature of the fermionic spectrum and a finite interaction range, we find a new scattering mechanism where high-energy electrons scatter off plasmons (density excitations). This leads to an exponential decay of the single-particle Green's function even at zero temperature with an energy-dependent rate. As a consequence of this electron-plasmon scattering channel, we observe the coherent excitation of a plasmon wave in the wake of a high-energy electron resulting in the buildup of a monochromatic sinusoidal density pattern.