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We present an operational method to determine the 'locally preferred structure'' of model liquids, a notion often put forward to explain supercooling of a liquid and glass formation. The method relies on finding the global minimum in the…

无序系统与神经网络 · 物理学 2011-05-05 S. Mossa , G. Tarjus

Recent theories predict that when a supercooled liquid approaches the glass transition, particle clusters with a special "amorphous order" nucleate within the liquid, which lead to static correlations dictating the dramatic slowdown of…

软凝聚态物质 · 物理学 2016-03-04 Bo Zhang , Xiang Cheng

Dynamic heterogeneity in glass-formers has been related to their static structure using the concept of dynamic propensity. We re-examine this relationship by analyzing dynamical fluctuations in two atomistic glass-formers and two…

统计力学 · 物理学 2009-08-25 Ludovic Berthier , Robert L. Jack

The interplay of slow dynamics and thermodynamic features of dense liquids is studied by examinining how the glass transition changes depending on the presence or absence of Lennard-Jones-like attractions. Quite different thermodynamic…

材料科学 · 物理学 2009-11-13 Th. Voigtmann

We assess the validity of "microscopic" approaches of glass-forming liquids based on the sole k nowledge of the static pair density correlations. To do so we apply them to a benchmark provided by two liquid models that share very similar…

统计力学 · 物理学 2011-10-10 Ludovic Berthier , Gilles Tarjus

We study static and dynamic spatial correlations in a two-dimensional spin model with four-body plaquette interactions and standard Glauber dynamics by means of analytic arguments and Monte Carlo simulations. We study in detail the…

统计力学 · 物理学 2009-11-11 Robert L. Jack , Ludovic Berthier , Juan P. Garrahan

Glass-forming liquids grow dramatically sluggish upon cooling. This slowdown has long been thought to be accompanied by a growing correlation length. Characteristic dynamical and static length scales, however, have been observed to grow at…

无序系统与神经网络 · 物理学 2016-08-22 Patrick Charbonneau , Ethan Dyer , Jaehoon Lee , Sho Yaida

Most of the liquid-state theories, including glass-transition theories, are constructed on the basis of two-body density correlations. However, we have recently shown that many-body correlations, in particular bond orientational…

软凝聚态物质 · 物理学 2015-06-12 Mathieu Leocmach , John Russo , Hajime Tanaka

The dynamics of a binary mixture of large and small discs are studied at temperatures approaching the glass transition using an analysis based on the topology of the Voronoi polygon surrounding each atom. At higher temperatures we find that…

软凝聚态物质 · 物理学 2018-09-21 M. T. Downton , M. P. Kennett

As approaching the glass transition, particle motion in liquids becomes highly heterogeneous and regions with virtually no mobility coexist with liquid-like domains. This complex dynamics is believed to be responsible for different…

软凝聚态物质 · 物理学 2018-03-28 F. Puosi , N. Jakse , A. Pasturel

We analyse the connections between structure and dynamics in two model glass-formers, using the mutual information between an initial configuration and the ensuing dynamics to compare the predictive value of different structural…

统计力学 · 物理学 2014-09-05 Robert L. Jack , Andrew J. Dunleavy , C. Patrick Royall

Using molecular dynamics simulations, we study the slow dynamics of supercooled liquids confined in a random matrix of immobile obstacles. We study the dynamical crossover from glass-like to Lorentz-gas-like behavior in terms of the density…

软凝聚态物质 · 物理学 2011-05-30 Kang Kim , Kunimasa Miyazaki , Shinji Saito

There is growing evidence that slow dynamics and dynamic heterogeneity possess structural signatures in glass-forming liquids. However, even in the weakly frustrated glass-forming liquids, whether or not the dynamic heterogeneity has a…

软凝聚态物质 · 物理学 2015-06-11 Wen-Sheng Xu , Zhao-Yan Sun , Li-Jia An

A quantitative understanding of the microscopic constraints which underlie a well relaxed glassy structure is the key to developing a microscopic theory of structural evolution and plasticity for the amorphous solid. Here we demonstrate the…

软凝聚态物质 · 物理学 2021-01-04 P. M. Derlet

Observations of glassy dynamics in experiments on confluent cellular tissue have inspired a wealth of computational and theoretical research to model their emergent collective behavior. Initial studies of the physical properties of several…

软凝聚态物质 · 物理学 2024-09-04 Helen S. Ansell , Chengling Li , Daniel M. Sussman

We demonstrate that an extended picture of kinetic constraints in glass-forming liquids is sufficient to explain dynamic anomalies observed in dense suspensions of strongly attracting colloidal particles. We augment a simple model of…

统计力学 · 物理学 2009-11-10 Phillip L. Geissler , David R. Reichman

We study the temperature dependence of static and dynamic responses of Coulomb interacting particles in two-dimensional traps across the thermal crossover from an amorphous solid- to liquid-like behaviors. While static correlations, that…

无序系统与神经网络 · 物理学 2017-10-11 Biswarup Ash , J. Chakrabarti , Amit Ghosal

We use molecular dynamics simulation to study the relationship between structure and dynamics in supercooled binary Lennard--Jones nanoparticles over a range of particle sizes. The glass transition temperature of the nanoparticles is found…

软凝聚态物质 · 物理学 2025-05-15 Weikai Qi , Shreya Tiwary , Richard K. Bowles

In trajectory space, dynamical heterogeneities in glass-forming liquids correspond to the emergence of a dynamical phase transition between an active phase poor in local structure and an inactive phase which is rich in local structure. We…

软凝聚态物质 · 物理学 2021-08-10 Francesco Turci , Thomas Speck , C. Patrick Royall

We introduce static and dynamic correlation functions for the spatial densities of Lyapunov vector fluctuations. They enable us to show, for the first time, the existence of hydrodynamic Lyapunov modes in chaotic many-particle systems with…

混沌动力学 · 物理学 2007-05-23 Günter Radons , Hongliu Yang