Recurrent noise-induced phase singularities in drifting patterns
Author
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Clerc Gavilán, Marcel
Author
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Coulibaly, Saliya
Author
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Campo, F. del
Author
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García Ñustes, Mónica
Author
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Louvergneaux, Eric
Author
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Wilson, M.
Admission date
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2015-12-30T03:20:14Z
Available date
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2015-12-30T03:20:14Z
Publication date
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2015
Cita de ítem
dc.identifier.citation
Physical Review E 92, 050902(R) (2015)
en_US
Identifier
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doi: 10.1103/PhysRevE.92.050902
Identifier
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https://repositorio.uchile.cl/handle/2250/136083
General note
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Artículo de publicación ISI.
en_US
Abstract
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We show that the key ingredients for creating recurrent traveling spatial phase defects in drifting patterns are a noise-sustained structure regime together with the vicinity of a phase transition, that is, a spatial region where the control parameter lies close to the threshold for pattern formation. They both generate specific favorable initial conditions for local spatial gradients, phase, and/or amplitude. Predictions from the stochastic convective Ginzburg-Landau equation with real coefficients agree quite well with experiments carried out on a Kerr medium submitted to shifted optical feedback that evidence noise-induced traveling phase slips and vortex phase-singularities.
en_US
Patrocinador
dc.description.sponsorship
ANR international program, FONDECYT, CONICYT by Beca Magister Nacional, Conseil Regional Nord-Pas de Calais, The Fonds Europeen de Developpement Economique des Regions.