Non-hermitean delocalization in an array of wells with variable-range widths
Disordered Systems and Neural Networks
2009-10-31 v2
Abstract
Nonhermitean hamiltonians of convection-diffusion type occur in the description of vortex motion in the presence of a tilted magnetic field as well as in models of driven population dynamics. We study such hamiltonians in the case of rectangular barriers of variable size. We determine Lyapunov exponent and wavenumber of the eigenfunctions within an adiabatic approach, allowing to reduce the original d=2 phase space to a d=1 attractor. PACS numbers:05.70.Ln,72.15Rn,74.60.Ge
Cite
@article{arxiv.cond-mat/0006029,
title = {Non-hermitean delocalization in an array of wells with variable-range widths},
author = {V. G. Benza},
journal= {arXiv preprint arXiv:cond-mat/0006029},
year = {2009}
}
Comments
20 pages,10 figures