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

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

2010-02-11

arxiv.org/abs/1002.2404v2

Phys. Rev. B 82, 033409 (2010)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 3 figures; version as published

Scientific paper

10.1103/PhysRevB.82.033409

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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