Within the replica symmetry breaking framework developed by Mézard and Parisi we investigate the occurrence of structural glass transitions in a model of fluid characterized by hard sphere repulsion together with short-range attraction. This model is appropriate for the description of a class of colloidal suspensions. The transition line in the density-temperature plane displays a reentrant behavior, in agreement with mode coupling theory and recent molecular dynamics simulations. Quantitative differences are found, together with the absence of the predicted glass-glass transition at high density. We also perform a systematic study of the pure hard-sphere fluid in order to ascertain the accuracy of the adopted method and the convergence of the numerical procedure.
|Titolo:||Dynamical arrest and replica symmetry breaking in attractive colloids|
REATTO, LUCIANO (Ultimo)
|Parole Chiave:||Colloids ; glass transition ; molecular dynamics method|
|Settore Scientifico Disciplinare:||Settore FIS/03 - Fisica della Materia|
|Data di pubblicazione:||2006|
|Digital Object Identifier (DOI):||10.1103/PhysRevE.74.021410|
|Appare nelle tipologie:||01 - Articolo su periodico|