Weakly polydisperse systems: Perturbative phase diagrams that include the critical region

dc.creatorSollich, Peter
dc.date2007-09-10
dc.date2008-03-03
dc.date.accessioned2026-07-07T09:23:58Z
dc.date.available2026-07-07T09:23:58Z
dc.descriptionThe phase behaviour of a weakly polydisperse system, such as a colloid with a small spread of particle sizes, can be related perturbatively to that of its monodisperse counterpart. I show how this approach can be generalized to remain well-behaved near critical points, avoiding the divergences of existing methods and giving access to some of the key qualitative features of polydisperse phase equilibria. The analysis explains also why in purely size polydisperse systems the critical point is, unusually, located very near the maximum of the cloud and shadow curves.
dc.description4.1 pages. Revised version, as published: expanded discussion of Fisher renormalization for systems with non-classifical critical exponents; coefficients "a" and "b" re-defined to simplify statement of critical point shifts and cloud/shadow curve slopes
dc.identifierhttps://arxiv.org/abs/0709.1399
dc.identifierhttp://arxiv.org/abs/0709.1399
dc.identifierPhys. Rev. Lett. 100:035701, 2008
dc.identifierdoi:10.1103/PhysRevLett.100.035701
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/155927
dc.subjectSoft Condensed Matter
dc.subjectMaterials Science
dc.subjectStatistical Mechanics
dc.titleWeakly polydisperse systems: Perturbative phase diagrams that include the critical region
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