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What do we learn from the shape of the dynamical susceptibility of glass-formers?
Cristina Toninelli, Matthieu Wyart, Ludovic Berthier +2
We compute analytically and numerically the four-point correlation function that characterizes non-trivial cooperative dynamics in glassy systems within several models of glasses:…
Are defect models consistent with the entropy and specific heat of glass-formers?
G. Biroli, J. P. Bouchaud, G. Tarjus
We show that point-like defect model of glasses cannot explain thermodynamic properties of glass-formers, as for example the excess specific heat close to the glass transition, con…
Experts' earning forecasts: bias, herding and gossamer information
Olivier Guedj, Jean-Philippe Bouchaud
We study the statistics of earning forecasts of US, EU, UK and JP stocks during the period 1987-2004. We confirm, on this large data set, that financial analysts are on average ove…
Glassy dynamics: mean-field `landscape' pictures versus growing length scale scenarii
Jean-Philippe Bouchaud
This is a short review on the compatibility between (a) mean-field, mode-coupling theories of the glass transition, where potential energy landscape ideas are natural, and (b) the…
Dynamics of granular avalanches caused by local perturbations
Thorsten Emig, Philippe Claudin, Jean-Philippe Bouchaud
Surface flow of granular material is investigated within a continuum approach in two dimensions. The dynamics is described by a non-linear coupling between the two `states' of the…
On the Adam-Gibbs-Wolynes scenario for the viscosity increase in glasses
J. -P. Bouchaud, G. Biroli
We reformulate the interpretation of the mean-field glass transition scenario for finite dimensional systems, proposed by Wolynes and collaborators. This allows us to establish cle…