Excitation of Small Quantum Systems by High-Frequency Fields
Condensed Matter
2009-10-28 v1 chao-dyn
Chaotic Dynamics
Quantum Physics
Abstract
The excitation by a high frequency field of multi--level quantum systems with a slowly varying density of states is investigated. A general approach to study such systems is presented. The Floquet eigenstates are characterized on several energy scales. On a small scale, sharp universal quasi--resonances are found, whose shape is independent of the field parameters and the details of the system. On a larger scale an effective tight--binding equation is constructed for the amplitudes of these quasi--resonances. This equation is non--universal; two classes of examples are discussed in detail.
Cite
@article{arxiv.cond-mat/9605116,
title = {Excitation of Small Quantum Systems by High-Frequency Fields},
author = {Naama Brenner and Shmuel Fishman},
journal= {arXiv preprint arXiv:cond-mat/9605116},
year = {2009}
}
Comments
4 pages, revtex, no figures