Seminários

Event

Title:: Boris Spivak: Nonlinear waves in disordered media
When:: 21.08.2012 11.00 h
Where:: Matéria Condensada Teórica - Niterói
Category:: Seminários

Description

Propagation of nonlinear waves in disordered media
Boris Spivak (U of Washington, EUA)

Motivated by recent experiments on light-induced crystallization in atomic traps we study the propagation of electromagnetic waves in non-linear media
described by the nonlinear Schrodinger equation. We show that for given
boundary conditions the number of solutions of the equation increases exponentially with sample size. We also discuss the sensitivity of the solutions to the change of external parameters, the similarity of this problem to the problem of spin glasses, and the relevance of our results to recent experiments on cold gases in atomic traps.