Superballistic spreading of wave packets - art. no. 012301

Authors
Hufnagel, L Ketzmerick, R Kottos, T Geisel, T
Citation
L. Hufnagel et al., Superballistic spreading of wave packets - art. no. 012301, PHYS REV E, 6401(1), 2001, pp. 2301
Citations number
20
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW E
ISSN journal
1063651X → ACNP
Volume
6401
Issue
1
Year of publication
2001
Part
1
Database
ISI
SICI code
1063-651X(200107)6401:1<2301:SSOWP->2.0.ZU;2-N
Abstract
We demonstrate for various systems that the variance of a wave packet M(t)p roportional tot(v), can show a superballistic increase with 2<v<less than o r equal to>3, for parametrically large time intervals. A model is construct ed that explains this phenomenon and its predictions are verified numerical ly for various disordered and quasiperiodic systems.