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Title: Universality of Persistence Exponents in Two-Dimensional Ostwald Ripening
Author: Soriano i Fradera, Jordi
Braslavsky, Ido
Xu, Di
Krichevsky, Oleg
Stavans, Joel
Keywords: Física de partícules
Particle physics
Issue Date: 24-Nov-2009
Publisher: American Physical Society
Abstract: We measured persistence exponents θ ( ϕ ) of Ostwald ripening in two dimensions, as a function of the area fraction ϕ occupied by coarsening domains. The values of θ ( ϕ ) in two systems, succinonitrile and brine, quenched to their liquid-solid coexistence region, compare well with one another, providing compelling evidence for the universality of the one-parameter family of exponents. For small ϕ , θ ( ϕ ) ≃ 0.39 ϕ , as predicted by a model that assumes no correlations between evolving domains. These constitute the first measurements of persistence exponents in the case of phase transitions with a conserved order parameter.
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It is part of: Physical Review Letters, 2009, vol. 103, num. 22, p. 226101
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ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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