Chaotic wave packet spreading in two-dimensional disordered nonlinear lattices
Bertin Many Manda,
Bob Senyange,
Charalampos Skokos
Abstract:We reveal the generic characteristics of wave packet delocalization in two-dimensional nonlinear disordered lattices by performing extensive numerical simulations in two basic disordered models: the Klein-Gordon system and the discrete nonlinear Schrödinger equation. We find that in both models (a) the wave packet's second moment asymptotically evolves as t am with a m ≈ 1/5 (1/3) for the weak (strong) chaos dynamical regime, in agreement with previous theoretical predictions [10], (b) chaos persists, but its … Show more
Set email alert for when this publication receives citations?
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.