Recurrence phase shift in Fermi-Pasta-Ulam nonlinear dynamics
We show that the dynamics of Fermi-Pasta-Ulam recurrence is associated with a nonlinear phase shift between initial and final states that are otherwise identical, after a full growth-return cycle. The properties of this phase shift are studied for the particular case of the self-focussing nonlinear Schrödinger equation, and we describe the magnitude of the phase shift in terms of the system parameters. This phase shift, accumulated during the nonlinear recurrence cycle, is a...[Show more]
|Collections||ANU Research Publications|
|Source:||Physics Letters A|
|01_Devine_Recurrence_phase_shift_in_2011.pdf||427.92 kB||Adobe PDF||Request a copy|
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.