Dynamics and scaling of noise-induced domain growth |
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| Authors: | M Ibañes J García-Ojalvo R Toral JM Sancho |
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| Institution: | (1) Departament d'Estructura i Constituents de la Matèria, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain, ES;(2) Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Colom 11, 08222 Terrassa, Spain, ES;(3) Instituto Mediterráneo de Estudios Avanzados, IMEDEA (CSIC-UIB), Campus UIB, 07071 Palma de Mallorca, Spain, ES |
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| Abstract: | The domain growth processes originating from noise-induced nonequilibrium phase transitions are analyzed, both for non-conserved
and conserved dynamics. The existence of a dynamical scaling regime is established in the two cases, and the corresponding
growth laws are determined. The resulting universal dynamical scaling scenarios are those of Allen-Cahn and Lifshitz-Slyozov,
respectively. Additionally, the effect of noise sources on the behaviour of the pair correlation function at short distances
is studied.
Received 28 June 2000 and Received in final form 29 September 2000 |
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| Keywords: | PACS 05 40 -a Fluctuation phenomena random processes noise and Brownian motion - 64 60 -i General studies of phase transitions |
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