Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Cammarota, C."'
Publikováno v:
SciPost Phys. 10, 002 (2021)
We focus on the energy landscape of a simple mean-field model of glasses and analyze activated barrier-crossing by combining the Kac-Rice method for high-dimensional Gaussian landscapes with dynamical field theory. In particular, we consider Langevin
Externí odkaz:
http://arxiv.org/abs/2006.08399
Publikováno v:
Phys. Rev. B 98, 174206 (2018)
As in the preceding paper we aim at identifying the effective theory that describes the fluctuations of the local overlap with an equilibrium reference configuration close to a putative thermodynamic glass transition. We focus here on the case of fin
Externí odkaz:
http://arxiv.org/abs/1807.06301
Publikováno v:
Phys. Rev. B 98, 174205 (2018)
In this paper and in the companion one we address the problem of identifying the effective theory that describes the statistics of the fluctuations of what is thought to be the relevant order parameter for glassy systems---the overlap field with an e
Externí odkaz:
http://arxiv.org/abs/1807.06293
Autor:
Baity-Jesi, M., Sagun, L., Geiger, M., Spigler, S., Arous, G. Ben, Cammarota, C., LeCun, Y., Wyart, M., Biroli, G.
Publikováno v:
PMLR 80:324-333, 2018; Republication with DOI (cite this one): J. Stat. Mech. (2019) 124013
We analyze numerically the training dynamics of deep neural networks (DNN) by using methods developed in statistical physics of glassy systems. The two main issues we address are (1) the complexity of the loss landscape and of the dynamics within it,
Externí odkaz:
http://arxiv.org/abs/1803.06969
Publikováno v:
Phys. Rev. Lett. 111, 107801 (2013)
We study the effect of confinement on glassy liquids using Random First Order Transition theory as framework. We show that the characteristic length-scale above which confinement effects become negligible is related to the point-to-set length-scale i
Externí odkaz:
http://arxiv.org/abs/1305.3538
At the mean-field level, on fully connected lattices, several disordered spin models have been shown to belong to the universality class of "structural glasses", with a "random first-order transition" (RFOT) characterized by a discontinuous jump of t
Externí odkaz:
http://arxiv.org/abs/1210.2941
Autor:
Cammarota, C., Cavagna, A., Giardina, I., Gradenigo, G., Grigera, T. S., Parisi, G., Verrocchio, P.
Publikováno v:
Phys. Rev. Lett. 105, 055703 (2010)
We study dynamic heterogeneities in a model glass-former whose overlap with a reference configuration is constrained to a fixed value. The system phase-separates into regions of small and large overlap, so that dynamical correlations remain strong ev
Externí odkaz:
http://arxiv.org/abs/1001.2539
Publikováno v:
J. Stat. Mech. (2009) L12002
The dramatic slowdown of glass-forming liquids has been variously linked to increasing dynamic and static correlation lengths. Yet, empirical evidence is insufficient to decide among competing theories. The random first order theory (RFOT) links the
Externí odkaz:
http://arxiv.org/abs/0904.1522
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