Dissipative transport in superlattices within the Wigner function formalism
Mesoscale and Nanoscale Physics
2015-10-26 v1 Materials Science
Other Condensed Matter
Quantum Physics
Abstract
We employ the Wigner function formalism to simulate partially coherent, dissipative electron transport in biased semiconductor superlattices. We introduce a model collision integral with terms that describe energy dissipation, momentum relaxation, and the decay of spatial coherences (localization). Based on a particle-based solution to the Wigner transport equation with the model collision integral, we simulate quantum electronic transport at 10 K in a GaAs/AlGaAs superlattice and accurately reproduce its current density vs field characteristics obtained in experiment.
Cite
@article{arxiv.1510.06778,
title = {Dissipative transport in superlattices within the Wigner function formalism},
author = {O. Jonasson and I. Knezevic},
journal= {arXiv preprint arXiv:1510.06778},
year = {2015}
}
Comments
Special JCEL issue on Wigner functions, http://link.springer.com/journal/10825/14/4/page/1