339 citations · 1.5k across the 23 of their papers we have counts for
23 papers
Computational Methods toward Ultrastable Glasses
Fabio Leoni, Misaki Ozawa, John Russo +2
Ultrastable glasses, amorphous solids with exceptionally low-energy states and enhanced kinetic, thermodynamic, and mechanical stability, have long been a subject of intense experi…
Sampling the Liquid-Gas Critical Point with Boltzmann Generators
Luigi de Santis, John Russo, Andrea Ninarello
Generative models based on invertible transformations provide a physics-aware route to sample equilibrium configurations directly from the Boltzmann distribution, enabling efficien…
Hyper-Auxeticity and the Volume Phase Transition of Polymer Gels
Andrea Ninarello, Emanuela Zaccarelli
Thermoresponsive hydrogels exhibit reversible deswelling at the Volume Phase Transition (VPT), associated to a minimum of the Poisson's ratio . Recent numerical investigations u…
Auxetic polymer networks: The role of crosslinking, density and disorder
Andrea Ninarello, José Ruiz-Franco, Emanuela Zaccarelli
Low-connectivity polymer networks were recently found to behave auxetically when subjected to small tensions, that is, their Poisson's ratio becomes negative. In addition, for…
Structure and elasticity of model disordered, polydisperse and defect-free polymer networks
Valerio Sorichetti, Andrea Ninarello, José Ruiz-Franco +5
The elasticity of disordered and polydisperse polymer networks is a fundamental problem of soft matter physics that is still open. Here, we self-assemble polymer networks via simul…
Onset of criticality in hyper-auxetic polymer networks
Andrea Ninarello, José Ruiz-Franco, Emanuela Zaccarelli
Against common sense, auxetic materials expand or contract perpendicularly when stretched or compressed, respectively, by uniaxial strain, being characterized by a negative Poisson…
Dynamical properties of different models of elastic polymer rings: confirming the link between deformation and fragility
Nicoletta Gnan, Fabrizio Camerin, Giovanni Del Monte +2
We report extensive numerical simulations of different models of 2D polymer rings with internal elasticity. We monitor the dynamical behavior of the rings as a function of the pack…
Two-step deswelling in the Volume Phase Transition of thermoresponsive microgels
Giovanni Del Monte, Domenico Truzzolillo, Fabrizio Camerin +7
Thermoresponsive microgels are one of the most investigated class of soft colloids, thanks to their ability to undergo a Volume Phase Transition (VPT) close to ambient temperature.…
Charge affinity and solvent effects in numerical simulations of ionic microgels
G. Del Monte, F. Camerin, A. Ninarello +3
Ionic microgel particles are intriguing systems in which the properties of thermo-responsive polymeric colloids are enriched by the presence of charged groups. In order to rational…
Microgels at interfaces behave as 2D elastic particles featuring reentrant dynamics
Fabrizio Camerin, Nicoletta Gnan, José Ruiz-Franco +3
Soft colloids are increasingly used as model systems to address fundamental issues such as crystallisation and the glass and jamming transitions. Among the available classes of sof…
Numerical insights on ionic microgels: structure and swelling behaviour
Giovanni Del Monte, Andrea Ninarello, Fabrizio Camerin +3
Recent progress has been made in the numerical modelling of neutral microgel particles with a realistic, disordered structure. In this work we extend this approach to the case of c…
Does the Adam-Gibbs relation hold in simulated supercooled liquids?
Misaki Ozawa, Camille Scalliet, Andrea Ninarello +1
We perform stringent tests of thermodynamic theories of the glass transition over the experimentally relevant temperature regime for several simulated glass-formers. The swap Monte…
Microgels Adsorbed at Liquid-Liquid Interfaces: A Joint Numerical and Experimental Study
Fabrizio Camerin, Miguel Angel Fernandez-Rodriguez, Lorenzo Rovigatti +5
Soft particles display highly versatile properties with respect to hard colloids, even more so at fluid-fluid interfaces. In particular, microgels, consisting of a cross-linked pol…
Modelling microgels with controlled structure across the volume phase transition
Andrea Ninarello, Jérôme J. Crassous, Divya Paloli +5
Thermoresponsive microgels are soft colloids that find widespread use as model systems for soft matter physics. Their complex internal architecture, made of a disordered and hetero…
A localization transition underlies the mode-coupling crossover of glasses
Daniele Coslovich, Andrea Ninarello, Ludovic Berthier
We study the equilibrium statistical properties of the potential energy landscape of several glass models in a temperature regime so far inaccessible to computer simulations. We sh…
Connecting elasticity and effective interactions of neutral microgels: the validity of the Hertzian model
Lorenzo Rovigatti, Nicoletta Gnan, Andrea Ninarello +1
An important open problem in materials science is whether a direct connection exists between single-particle elastic properties and the macroscopic bulk behavior. Here we address t…
Zero-temperature glass transition in two dimensions
Ludovic Berthier, Patrick Charbonneau, Andrea Ninarello +2
The nature of the glass transition is theoretically understood in the mean-field limit of infinite spatial dimensions, but the problem remains totally open in physical dimensions.…
Low-frequency vibrational modes of stable glasses
Lijin Wang, Andrea Ninarello, Pengfei Guan +3
We numerically study the evolution of the vibrational density of states of zero-temperature glasses when their kinetic stability is varied over an extremely broad range, ran…
Models and algorithms for the next generation of glass transition studies
Andrea Ninarello, Ludovic Berthier, Daniele Coslovich
Successful computer studies of glass-forming materials need to overcome both the natural tendency to structural ordering and the dramatic increase of relaxation times at low temper…
Configurational entropy measurements in extremely supercooled liquids that break the glass ceiling
Ludovic Berthier, Patrick Charbonneau, Daniele Coslovich +3
Liquids relax extremely slowly upon approaching the glass state. One explanation is that an entropy crisis, due to the rarefaction of available states, makes it increasingly arduou…
Equilibrium sampling of hard spheres up to the jamming density and beyond
Ludovic Berthier, Daniele Coslovich, Andrea Ninarello +1
We implement and optimize a particle-swap Monte-Carlo algorithm that allows us to thermalize a polydisperse system of hard spheres up to unprecedentedly-large volume fractions, whe…
Structure and dynamics of coupled viscous liquids
Andrea Ninarello, Ludovic Berthier, Daniele Coslovich
We perform Monte-Carlo simulations to analyse the structure and microscopic dynamics of a viscous Lennard-Jones liquid coupled to a quenched reference configuration of the same liq…
Observable-dependence of the effective temperature in off-equilibrium diatomic molecular liquids
Andrea Saverio Ninarello, Nicoletta Gnan, Francesco Sciortino
We discuss the observable-dependence of the effective temperature , defined via the fluctuation-dissipation relation, of an out-of-equilibrium system composed by homonucle…