Quantum diffusion in two-dimensional random systems with particle-hole symmetry
Disordered Systems and Neural Networks
2012-07-30 v2 Quantum Physics
Abstract
We study the scattering dynamics of an -component spinor wavefunction in a random environment on a two-dimensional lattice. In the presence of particle-hole symmetry we find diffusion on large scales. The latter is described by a non-interacting Grassmann field, indicating a special kind of asymptotic freedom in .
Cite
@article{arxiv.1112.1992,
title = {Quantum diffusion in two-dimensional random systems with particle-hole symmetry},
author = {K. Ziegler},
journal= {arXiv preprint arXiv:1112.1992},
year = {2012}
}
Comments
9 pages, no figures, extended version