Compressing nearly hard sphere fluids increases glass fragility

dc.creatorBerthier, Ludovic
dc.creatorWitten, Thomas A.
dc.date2008-10-24
dc.date2009-03-12
dc.date.accessioned2026-07-07T13:01:51Z
dc.date.available2026-07-07T13:01:51Z
dc.descriptionWe use molecular dynamics to investigate the glass transition occurring at large volume fraction, phi, and low temperature, T, in assemblies of soft repulsive particles. We find that equilibrium dynamics in the (phi, T) plane obey a form of dynamic scaling in the proximity of a critical point at T=0 and phi=phi_0, which should correspond to the ideal glass transition of hard spheres. This glass point, `point G', is distinct from athermal jamming thresholds. A remarkable consequence of scaling behaviour is that the dynamics at fixed phi passes smoothly from that of a strong glass to that of a very fragile glass as phi increases beyond phi_0. Correlations between fragility and various physical properties are explored.
dc.description5 pages, 3 figures; Version accepted at Europhys. Lett
dc.identifierhttps://arxiv.org/abs/0810.4405
dc.identifierhttp://arxiv.org/abs/0810.4405
dc.identifierEurophys. Lett. 86, 10001 (2009)
dc.identifierdoi:10.1209/0295-5075/86/10001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/226286
dc.subjectStatistical Mechanics
dc.subjectDisordered Systems and Neural Networks
dc.titleCompressing nearly hard sphere fluids increases glass fragility
dc.typetext

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