Controlling dispersive chaos in binary-fluid convection

Paul Kolodner, Georg Flätgen, Ioannis G. Kevrekidis

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

We report observations of stabilized traveling-wave (TW) convection in a regime in which the uncontrolled system exhibits repeated, erratic growth and abrupt decay of spatially localized bursts of TW. By applying as feedback a spatially varying Rayleigh-number profile computed from the measured convection pattern, we suppress this behavior and stabilize states of unidirectional TW with spatially uniform amplitude on the unstable branch of the subcritical bifurcation to convection. This allows us to measure the nonlinear coefficients of the corresponding quintic complex Ginzburg-Landau equation.

Original languageEnglish (US)
Pages (from-to)730-733
Number of pages4
JournalPhysical review letters
Volume83
Issue number4
DOIs
StatePublished - Jan 1 1999

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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