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Direct experimental evidence of a growing length scale accompanying the glass transition
Ludovic Berthier, Giulio Biroli, Jean-Philippe Bouchaud +5
Understanding glass formation is a challenge because the existence of a true glass state, distinct from liquid and solid, remains elusive: Glasses are liquids that have become too…
Activated aging dynamics and negative fluctuation-dissipation ratios
Peter Mayer, Sébastien Léonard, Ludovic Berthier +2
In glassy materials aging proceeds at large times via thermal activation. We show that this can lead to negative dynamical response functions and novel and well-defined violations…
Lifetime of dynamic heterogeneity in strong and fragile kinetically constrained spin models
Sébastien Léonard, Ludovic Berthier
Kinetically constrained spin models are schematic coarse-grained models for the glass transition which represent an efficient theoretical tool to study detailed spatio-temporal asp…
Temperature Cycles in the Heisenberg Spin Glass
Ludovic Berthier, A. P. Young
We study numerically the nonequilibrium dynamics of the three-dimensional Heisenberg Edwards-Anderson spin glass submitted to protocols during which temperature is shifted or cycle…
Bubbles in sheared two-dimensional foams
C. Quilliet, M. A. P. Idiart, B. Dollet +2
Oscillatory shear on two-dimensional monodisperse liquid foams was performed. We show that the effect of the oscillatory shear is to cause the migration of bubbles which size is gr…
Static and dynamic lengthscales in a simple glassy plaquette model
Robert L. Jack, Ludovic Berthier, Juan P. Garrahan
We study static and dynamic spatial correlations in a two-dimensional spin model with four-body plaquette interactions and standard Glauber dynamics by means of analytic arguments…