Transition to Spatiotemporal Intermittency and Defect Turbulence in Systems under Translational Coupling

Out of equilibrium systems under the influence of enough energy injection exhibit complex spatiotemporal behaviors. Based on a liquid crystal light valve experiment with translational optical feedback, we observe propagation, spatiotemporal intermittency, and defect turbulence of striped waves. A pr...

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Bibliographic Details
Published in:Physical review letters 2020-04, Vol.124 (16), p.164101-164101, Article 164101
Main Authors: Alvarez-Garrido, F, Clerc, M G, Gonzalez-Cortes, G
Format: Article
Language:English
Subjects:
Amplitudes
Bifurcations
Coupling
Intermittency
Light valves
Liquid crystals
Optical feedback
Phenomenology
Qualitative analysis
Turbulence
Wave propagation
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Summary:Out of equilibrium systems under the influence of enough energy injection exhibit complex spatiotemporal behaviors. Based on a liquid crystal light valve experiment with translational optical feedback, we observe propagation, spatiotemporal intermittency, and defect turbulence of striped waves. A prototype model of pattern formation with translational coupling shows the same phenomenology. Close to the spatial instability, a local amplitude equation is derived. This amplitude equation allows us to reveal the origin and bifurcation diagram of the observed complex spatiotemporal dynamics. Experimental observations have a qualitative agreement with theoretical findings.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.124.164101