2001/01/31 by L. Hufnagel, Lars Hufnagel, Roland Ketzmerick +4
Physics and Astronomy · #Nonlinear Photonic Systems #Quantum chaos and dynamical systems #Theoretical and Computational Physics #cond-mat.dis-nn
paper · pdf · doi:10.1103/physreve.64.012301
published as Phys. Rev. E, vol. 64, 012301 (2001) · 4 pages, 4 figures
openalex publication_date 2001/06/13 · arxiv created 2001/08/28 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We demonstrate for various systems that the variance of a wave packet M(t) proportional to t(nu), can show a superballistic increase with 2 < nu < or = 3, for parametrically large time intervals. A model is constructed that explains this phenomenon and its predictions are verified numerically for various disordered and quasiperiodic systems.