Numerical and theoretical study of a monodisperse hard-sphere glass former.
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There exists a variety of theories of the glass transition and many more numerical models. But because the models need built-in complexity to prevent crystallization, comparisons with theory can be difficult. We study the dynamics of a deeply supersaturated monodisperse four-dimensional (4D) hard-sphere fluid, which has no such complexity, but whose strong intrinsic geometrical frustration inhibits crystallization, even when deeply supersaturated. As an application, we compare its behavior to the mode-coupling theory (MCT) of glass formation. We find MCT to describe this system better than any other structural glass formers in lower dimensions. The reduction in dynamical heterogeneity in 4D suggested by a milder violation of the Stokes-Einstein relation could explain the agreement. These results are consistent with a mean-field scenario of the glass transition.
Published Version (Please cite this version)10.1103/PhysRevE.81.040501
Publication InfoCharbonneau, P; Ikeda, A; van Meel, JA; & Miyazaki, K (2010). Numerical and theoretical study of a monodisperse hard-sphere glass former. Phys Rev E Stat Nonlin Soft Matter Phys, 81(4 Pt 1). pp. 040501. 10.1103/PhysRevE.81.040501. Retrieved from https://hdl.handle.net/10161/12596.
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Professor of Chemistry
Professor Charbonneau studies soft matter. His work combines theory and simulation to understand the glass problem, protein crystallization, microphase formation, and colloidal assembly in external fields.