Controlling chaos for spatiotemporal intermittency

Noriko Oikawa, Yoshiki Hidaka, Shoichi Kai

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This paper reports the control of spatiotemporal intermittency in an electroconvective system in a nematic liquid crystal. In the spatiotemporal intermittency, an ordered structure [the defect lattice (DL)] coexists with turbulence. Control of the spatiotemporal intermittency, in which the turbulent state changes to a DL, is achieved by a few percent amplitude modulation of the applied ac voltage. The optimal control frequency is equal to the intrinsic oscillation frequency of the DL. The transition from the turbulent state to a DL occurs not by nucleation of the DL domain, but by penetration of the DL domain into the turbulent one. Control of the spatiotemporal intermittency is achieved through a resonance of the DL oscillation with respect to the modulation frequency that leads to spatial entrainment.

Original languageEnglish
Article number035205
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume77
Issue number3
DOIs
Publication statusPublished - Mar 28 2008

Fingerprint

Controlling Chaos
Intermittency
intermittency
chaos
Defects
defects
Oscillation
Amplitude Modulation
oscillations
Entrainment
Frequency Modulation
entrainment
Nematic Liquid Crystal
optimal control
Nucleation
Penetration
frequency modulation
Percent
Turbulence
Optimal Control

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

Cite this

Controlling chaos for spatiotemporal intermittency. / Oikawa, Noriko; Hidaka, Yoshiki; Kai, Shoichi.

In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, Vol. 77, No. 3, 035205, 28.03.2008.

Research output: Contribution to journalArticle

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