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Article
Two-Dimensional Structures in the Quintic Ginzburg-Landau Equation
Nonlinear Dynamics
  • Florent Bérard, Universite Bordeaux I
  • Charles-Julien Vandamme, Universite Bordeaux I
  • S.C. Mancas, Embry-Riddle Aeronautical University
Submitting Campus
Daytona Beach
Department
Mathematics
Document Type
Article
Publication/Presentation Date
8-1-2015
Abstract/Description

By using ZEUS cluster at Embry-Riddle Aeronautical University we perform extensive numerical simulations based on a two-dimensional Fourier spectral method Fourier spatial discretization and an explicit scheme for time differencing) to find the range of existence of the spatiotemporal solitons of the two-dimensional complex Ginzburg-Landau equation with cubic and quintic nonlinearities. We start from the parameters used by Akhmediev et. al. and slowly vary them one by one to determine the regimes where solitons exist as stable/unstable structures. We present eight classes of dissipative solitons from which six are known (stationary, pulsating, vortex spinning, filament, exploding, creeping) and two are novel (creeping-vortex propellers and spinning “bean-shaped” solitons). By running lengthy simulations for the different parameters of the equation, we find ranges of existence of stable structures (stationary, pulsating, circular vortex spinning, organized exploding), and unstable structures (elliptic vortex spinning that leads to filament, disorganized exploding, creeping). Moreover, by varying even the two initial conditions together with vorticity, we find a richer behavior in the form of creeping-vortex propellers, and spinning “bean-shaped” solitons. Each class differentiates from the other by distinctive features of their energy evolution, shape of initial conditions, as well as domain of existence of parameters.

DOI
https://doi.org/10.1007/s11071-015-2077-2
Publisher
Springer
Citation Information
Florent Bérard, Charles-Julien Vandamme and S.C. Mancas. "Two-Dimensional Structures in the Quintic Ginzburg-Landau Equation" Nonlinear Dynamics Vol. 81 Iss. 3 (2015) p. 1413 - 1433
Available at: http://works.bepress.com/stefani_mancas/90/