Wigner transport equation with finite coherence length
Mesoscale and Nanoscale Physics
2013-09-24 v2 Quantum Physics
Abstract
The use of the Wigner function for the study of quantum transport in open systems present severe criticisms. Some of the problems arise from the assumption of infinite coherence length of the electron dynamics outside the system of interest. In the present work the theory of the Wigner function is revised assuming a finite coherence length. A new dynamical equation is found, corresponding to move the Wigner momentum off the real axis, and a numerical analysis is performed for the case of study of the onedimensional potential barrier.
Keywords
Cite
@article{arxiv.1305.6527,
title = {Wigner transport equation with finite coherence length},
author = {Carlo Jacoboni and Paolo Bordone},
journal= {arXiv preprint arXiv:1305.6527},
year = {2013}
}
Comments
14 pages, 1 figure. Revised text. Added new references