55 citations · 189 across the 17 of their papers we have counts for
17 papers
Overcoming critical slowing down in frustrated spin systems by learned multiscale sampling
Gabriele Bandini, Giulio Biroli, Patrick Charbonneau +1
Cluster algorithms, such as the Swendsen--Wang and Wolff methods, are among the most successful MCMC methods for mitigating critical slowing down in statistical systems. These cons…
Nucleation beyond Equilibrium: Fronts Control Invasion in Bistable Ecosystems
Victor Lequin, Giulio Biroli, Camille Scalliet
Bistability, the existence of two alternative stable states with distinct basins of attraction, is common across ecology and many other biological, chemical, and physical systems.…
Inertial Asynchronous Computation
Doruk Efe Gökmen, Michel Fruchart, Dmitrii Zendrikov +3
Computation is the controlled evolution of a state. Asynchronous evolutions, where all parts of the state change in their own time without stopping each other, put this control in…
On the anomalous elasticity in the mechanical response of amorphous solids
Gilles Tarjus, Misaki Ozawa, Giulio Biroli
The response of amorphous solids to a mechanical perturbation consists in an elastic and a plastic deformation. The latter is mediated by localized irreversible rearrangements asso…
High-Dimensional Analysis of Gradient Flow for Extensive-Width Quadratic Neural Networks
Simon Martin, Giulio Biroli, Francis Bach
We study the high-dimensional training dynamics of a shallow neural network with quadratic activation in a teacher-student setup. We focus on the extensive-width regime, where the…
When is nonreciprocity relevant?
Giulia Garcia Lorenzana, David Martin, Yael Avni +4
Nonreciprocal interactions are widely observed in nonequilibrium systems, from biological or sociological dynamics to open quantum systems. Despite the ubiquity of nonreciprocity,…
Entropy Production from Density Field Theories for interacting particles systems
Antonin Brossollet, Giulio Biroli
Entropy production quantifies the breaking of time-reversal symmetry in non-equilibrium systems. Here, we develop a direct method to obtain closed, tractable expressions for entrop…
Effective Energy, Interactions And Out Of Equilibrium Nature Of Scalar Active Matter
Antonin Brossollet, Etienne Lempereur, Stéphane Mallat +1
Estimating the effective energy, of a stationary probability distribution is a challenge for non-equilibrium steady states. Its solution could offer a novel framewor…
Nonreciprocal Spin-Glass Transition and Aging
Giulia Garcia Lorenzana, Ada Altieri, Giulio Biroli +2
Disordered systems generically exhibit aging and a glass transition. Previous studies have long suggested that non-reciprocity tends to destroy glassiness. Here, we show that this…
On the Impact of Overparameterization on the Training of a Shallow Neural Network in High Dimensions
Simon Martin, Francis Bach, Giulio Biroli
We study the training dynamics of a shallow neural network with quadratic activation functions and quadratic cost in a teacher-student setup. In line with previous works on the sam…
Shear-Induced Phase Behavior and Topological Defects in Two-Dimensional Crystals
Federico Ghimenti, Misaki Ozawa, Giulio Biroli +1
We investigate through numerical simulations how a two-dimensional crystal yields and flows under an applied shear. We focus over a range that allows us to both address the respons…
Far-from-equilibrium criticality in the Random Field Ising Model with Eshelby Interactions
Saverio Rossi, Giulio Biroli, Misaki Ozawa +1
We study a quasi-statically driven random field Ising model (RFIM) at zero temperature with interactions mediated by the long-range anisotropic Eshelby kernel. Analogously to amorp…
Interactions and migration rescuing ecological diversity
Giulia Garcia Lorenzana, Ada Altieri, Giulio Biroli
How diversity is maintained in natural ecosystems is a long-standing question in Theoretical Ecology. By studying a system that combines ecological dynamics, heterogeneous interact…
Nonperturbative fluctuations and metastability in a simple model: from observables to microscopic theory and back
Charlotte Rulquin, Pierfrancesco Urbani, Giulio Biroli +2
Slow dynamics in glassy systems is often interpreted as due to thermally activated events between "metastable" states. This emphasizes the role of nonperturbative fluctuations, whi…
Ultrafast dynamics of fluctuations in high-temperature superconductors far from equilibrium
L. Perfetti, B. Sciolla, G. Biroli +4
Despite extensive work on high-temperature superconductors, the critical behavior of an incipient condensate has so far been studied exclusively under equilibrium conditions. Here,…
Evidence of growing spatial correlations during the aging of glassy glycerol
C. Brun, F. Ladieu, L'Hôte +2
We have measured, as a function of the age , the aging of the nonlinear dielectric susceptibility of glycerol below the glass transition. Whereas the linear susceptibili…
Mode-Coupling as a Landau Theory of the Glass Transition
A. Andreanov, G. Biroli, J. -P. Bouchaud
We derive the Mode Coupling Theory (MCT) of the glass transition as a Landau theory, formulated as an expansion of the exact dynamical equations in the difference between the corre…