2.1k citations · 16.3k across the 193 of their papers we have counts for
23 papers · 1 filter
Normalizing flows as an enhanced sampling method for atomistic supercooled liquids
Gerhard Jung, Giulio Biroli, Ludovic Berthier
Normalizing flows can transform a simple prior probability distribution into a more complex target distribution. Here, we evaluate the ability and efficiency of generative machine…
Ductile-to-brittle transition and yielding in soft amorphous materials: perspectives and open questions
Thibaut Divoux, Elisabeth Agoritsas, Stefano Aime +37
Soft amorphous materials are viscoelastic solids ubiquitously found around us, from clays and cementitious pastes to emulsions and physical gels encountered in food or biomedical e…
Mean-Field Analysis of the Glassy Dynamics of an Elastoplastic Model of Super-Cooled Liquids
Joseph W. Baron, Giulio Biroli
We present a mean-field theory of a coarse-grained model of a super-cooled liquid in which relaxation occurs via local plastic rearrangements. Local relaxation can be induced by th…
Dynamical Facilitation Governs the Equilibration Dynamics of Glasses
Rahul N. Chacko, François P. Landes, Giulio Biroli +3
Convincing evidence of domain growth in the heating of ultrastable glasses suggests that the equilibration dynamics of super-cooled liquids could be driven by a nucleation and grow…
Roadmap on machine learning glassy dynamics
Gerhard Jung, Rinske M. Alkemade, Victor Bapst +10
Unraveling the connections between microscopic structure, emergent physical properties, and slow dynamics has long been a challenge when studying the glass transition. The absence…
Dynamic heterogeneity at the experimental glass transition predicted by transferable machine learning
Gerhard Jung, Giulio Biroli, Ludovic Berthier
We develop a transferable machine learning model which predicts structural relaxation from amorphous supercooled liquid structures. The trained networks are able to predict dynamic…
Scaling Description of Dynamical Heterogeneity and Avalanches of Relaxation in Glass-Forming Liquids
Ali Tahaei, Giulio Biroli, Misaki Ozawa +2
We provide a theoretical description of dynamical heterogeneities in glass-forming liquids, based on the premise that relaxation occurs via local rearrangements coupled by elastici…
Predicting dynamic heterogeneity in glass-forming liquids by physics-inspired machine learning
Gerhard Jung, Giulio Biroli, Ludovic Berthier
We introduce GlassMLP, a machine learning framework using physics-inspired structural input to predict the long-time dynamics in deeply supercooled liquids. We apply this deep neur…
Finite-disorder critical point in the yielding transition of elasto-plastic models
Saverio Rossi, Giulio Biroli, Misaki Ozawa +2
Upon loading, amorphous solids can exhibit brittle yielding, with the abrupt formation of macroscopic shear bands leading to fracture, or ductile yielding, with a multitude of plas…
Elastoplasticity Mediates Dynamical Heterogeneity Below the Mode-Coupling Temperature
Rahul N. Chacko, François P. Landes, Giulio Biroli +3
As liquids approach the glass transition temperature, dynamical heterogeneity emerges as a crucial universal feature of their behavior. Dynamic facilitation, where local motion tri…
Revisiting the Concept of Activation in Supercooled Liquids
Marco Baity-Jesi, Giulio Biroli, David R. Reichman
In this work we revisit the description of dynamics based on the concepts of metabasins and activation in mildly supercooled liquids via the analysis of the dynamics of a paradigma…
Rare events and disorder control the brittle yielding of well-annealed amorphous solids
Misaki Ozawa, Ludovic Berthier, Giulio Biroli +1
We use atomistic computer simulations to provide a microscopic description of the brittle failure of amorphous materials, and we assess the role of rare events and quenched disorde…
Experimental Determination of Configurational Entropy in a Two-Dimensional Liquid under Random Pinning
Ian Williams, Francesco Turci, James E. Hallett +4
A quasi two-dimensional colloidal suspension is studied under the influence of immobilisation (pinning) of a random fraction of its particles. We introduce a novel experimental met…
Breakdown of Elasticity in Amorphous Solids
Giulio Biroli, Pierfrancesco Urbani
What characterises a solid is its way to respond to external stresses. Ordered solids, such crystals, display an elastic regime followed by a plastic one, both well understood micr…
Spinodals with Disorder: from Avalanches in Random Magnets to Glassy Dynamics
Saroj Kumar Nandi, Giulio Biroli, Gilles Tarjus
We revisit the phenomenon of spinodals in the presence of quenched disorder and develop a complete theory for it. We focus on the spinodal of an Ising model in a quenched random fi…
Evidence of growing spatial correlations at the glass transition from nonlinear response experiments
C. Crauste-Thibierge, C. Brun, F. Ladieu +3
The ac nonlinear dielectric response of glycerol was measured close to its glass transition temperature to investigate the prediction that supercooled liquids resp…
Elementary Excitation Modes in a Granular Glass above Jamming
Carolina Brito, Olivier Dauchot, Giulio Biroli +1
The dynamics of granular media in the jammed, glassy region is described in terms of "modes", by applying a Principal Component Analysis (PCA) to the covariance matrix of the posit…
Super-diffusion around the rigidity transition: Levy and the Lilliputians
F. Lechenault, R. Candelier, O. Dauchot +2
By analyzing the displacement statistics of an assembly of horizontally vibrated bidisperse frictional grains in the vicinity of the jamming transition experimentally studied befor…
Evolution of dynamical facilitation approaching the granular glass transition
R. Candelier, O. Dauchot, G. Biroli
We investigate the relaxation dynamics of a dense monolayer of bidisperse beads by analyzing the experimental data previously obtained in a fluidized bed. We show that the dynamics…
Avalanches and Dynamical Correlations in supercooled liquids
R. Candelier, A. Widmer-Cooper, J. K. Kummerfeld +4
We identify the pattern of microscopic dynamical relaxation for a two dimensional glass forming liquid. On short timescales, bursts of irreversible particle motion, called cage jum…
The building blocks of dynamical heterogeneities in dense granular media
R. Candelier, O. Dauchot, G. Biroli
We investigate experimentally the connection between short time dynamics and long time dynamical heterogeneities within a dense granular media under cyclic shear. We show that dyna…
Lower bound on the four-point dynamical susceptibility: Direct experimental test on a granular packing
F. Lechenault, O. Dauchot, G. Biroli +1
We track the motion of a horizontally vibrated amorphous assembly of bidisperse hard disks, for densities ranging across the jamming transition. We derive on very general grounds a…
Critical scaling and heterogeneous superdiffusion across the jamming/rigidity transition of a granular glass
F. Lechenault, O. Dauchot, G. Biroli +1
The dynamical properties of a dense horizontally vibrated bidisperse granular monolayer are experimentally investigated. The quench protocol produces states with a frozen structure…