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arXiv · 1002.2404

Electron-Plasmon scattering in chiral 1D systems with nonlinear dispersion

Markus Heyl·Stefan Kehrein·Florian Marquardt·Clemens Neuenhahn
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Abstract

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.

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Markus Heyl, Stefan Kehrein, Florian Marquardt, Clemens Neuenhahn. 2010-02-11. Electron-Plasmon scattering in chiral 1D systems with nonlinear dispersion. https://doi.org/10.1103/physrevb.82.033409

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