Tunneling and the Band Structure of Chaotic Systems
Condensed Matter
2009-10-22 v1 chao-dyn
Chaotic Dynamics
Abstract
We compute the dispersion laws of chaotic periodic systems using the semiclassical periodic orbit theory to approximate the trace of the powers of the evolution operator. Aside from the usual real trajectories, we also include complex orbits. These turn out to be fundamental for a proper description of the band structure since they incorporate conduction processes through tunneling mechanisms. The results obtained, illustrated with the kicked-Harper model, are in excellent agreement with numerical simulations, even in the extreme quantum regime.
Keywords
Cite
@article{arxiv.cond-mat/9405004,
title = {Tunneling and the Band Structure of Chaotic Systems},
author = {P. Leboeuf and A. Mouchet},
journal= {arXiv preprint arXiv:cond-mat/9405004},
year = {2009}
}
Comments
11 pages, Latex, figures on request to the author (to be sent by fax)