Analytic theory of parabolic pulses in dissipative systems with rapidly varying mean-zero dispersion

Brandon G. Bale, J. Nathan Kutz

Research output: Contribution to journalArticle

Abstract

A theoretical model shows that in the context of a Ginzburg-Landau equation with rapidly varying, mean-zero dispersion, stable and attracting self-similar breathers are formed with parabolic profiles. These self-similar solutions are the final solution state of the system, not a long-time, intermediate asymptotic behavior. A transformation shows the self-similarity to be governed by a nonlinear diffusion equation with a rapidly varying, mean-zero diffusion coefficient. The alternating sign of the diffusion coefficient, which is driven by the dispersion fluctuations, is critical to supporting the parabolic profiles which are, to leading order, of the Barenblatt form. Our analytic model proposes a mechanism for generating physically realizable temporal parabolic pulses in the Ginzburg-Landau model.

Original languageEnglish
Article number046602
Number of pages5
JournalPhysical Review E
Volume79
Issue number4
DOIs
Publication statusPublished - 6 Apr 2009

Fingerprint Dive into the research topics of 'Analytic theory of parabolic pulses in dissipative systems with rapidly varying mean-zero dispersion'. Together they form a unique fingerprint.

  • Cite this