中文
相关论文

相关论文: Colloidal glass transition: Beyond mode-coupling t…

200 篇论文

A mode-coupling theory for dense polymeric systems is developed which unifyingly incorporates the segmental cage effect relevant for structural slowing down and polymer chain conformational degrees of freedom. An ideal glass transition of…

软凝聚态物质 · 物理学 2009-11-07 S. -H. Chong , M. Fuchs

Mode coupling theory (MCT) has been successful in explaining the observed sequence of time relaxations in dense fluids. Previous expositions of this theory showing this sequence have required the existence of an ideal glass transition…

凝聚态物理 · 物理学 2009-10-22 Gene F. Mazenko , Joonhyun Yeo

We use a recently derived diagrammatic formulation of the dynamics of interacting Brownian particles [G. Szamel, J. Chem. Phys. 127, 084515 (2007)] to study a four-point dynamic density correlation function. We re-sum a class of diagrams…

统计力学 · 物理学 2009-11-13 Grzegorz Szamel

The history dependence of the glasses formed from flow-melted steady states by a sudden cessation of the shear rate $\dot\gamma$ is studied in colloidal suspensions, by molecular dynamics simulations, and mode-coupling theory. In an ideal…

The reformulation of the mode-coupling theory (MCT) of the liquid-glass transition which incorporates the element of metastability is applied to the hard-sphere system. It is shown that the glass transition in this system is not a sharp one…

凝聚态物理 · 物理学 2016-08-31 Joonhyun Yeo

We present experimental confirmation of dynamic facilitation in monodisperse and bidisperse colloidal suspensions near the glass transition volume fraction. Correlations in particle dynamics are seen to exist not only in space (clusters and…

软凝聚态物质 · 物理学 2014-06-24 Scott V. Franklin , Eric R. Weeks

We study the dynamics of a tagged particle in a glassy system under shear. The recently developed integration through transients approach based on mode coupling theory, is continued to arrive at the equations for the tagged particle…

软凝聚态物质 · 物理学 2011-07-07 Matthias Krüger , Fabian Weysser , Matthias Fuchs

The glass transition is the most enduring grand-challenge problem in contemporary condensed matter physics. Here, we review the contribution of colloid experiments to our understanding of this problem. First, we briefly outline the success…

软凝聚态物质 · 物理学 2016-09-01 Shreyas Gokhale , A. K. Sood , Rajesh Ganapathy

A discrete--dynamics model, which is specified solely in terms of the system's equilibrium structure, is defined for the density correlators of a simple fluid. This model yields results for the evolution of glassy dynamics which are…

无序系统与神经网络 · 物理学 2011-08-12 T. Franosch , W. Götze , M. R. Mayr , A. P. Singh

In a dense colloidal suspension at a volume fraction slightly lower than that of its glass transition, we follow the trajectories of an assembly of tracers over a large time window. We define a local activity, which quantifies the local…

软凝聚态物质 · 物理学 2022-08-31 Bérengère Abou , Rémy Colin , Vivien Lecomte , Estelle Pitard , Frédéric van Wijland

We study the dynamical behavior of a lattice model of glass former on a random graph, where no corrections to the mean field description are expected. We find that the behavior of dynamical correlation functions and dynamical susceptibility…

无序系统与神经网络 · 物理学 2011-06-17 A. de Candia , M. Mauro , A. Coniglio

We report idealized mode-coupling theory results for the glass transition of ensembles of model fullerenes interacting via phenomenological two-body potentials. Transition lines are found for C60, C70 and C96 in the temperature-density…

统计力学 · 物理学 2007-05-23 M. J. Greenall , Th. Voigtmann

A new class of lattice gas models with trivial interactions but constrained dynamics are introduced. These are proven to exhibit a dynamical glass transition: above a critical density, rho_c, ergodicity is broken due to the appearance of an…

统计力学 · 物理学 2009-11-11 Cristina Toninelli , Giulio Biroli , Daniel S. Fisher

We present a theoretical framework for higher-order correlation functions involving multiple times and multiple points in a classical, many-body system. Such higher-order correlation functions have attracted much interest recently in the…

统计力学 · 物理学 2009-11-07 Ramses van Zon , Jeremy Schofield

We analyze the glassy dynamics of a binary mixtures of hard disks in two dimensions. Predictions of the Mode-Coupling theory(MCT) are tested with extensive Brownian dynamics simulations. Measuring the collective particle density correlation…

软凝聚态物质 · 物理学 2011-04-27 Fabian Weysser , David Hajnal

I review recent progress in understanding the arrest and flow behaviour of colloidal glasses, based on mode coupling theory (MCT) and related approaches. MCT has had notable recent successes in predicting the re-entrant arrest behaviour of…

软凝聚态物质 · 物理学 2009-11-07 M. E. Cates

A formally exact set of equations is derived for the description of nonequilibrium phenomena in classical liquids and glasses. With the help of a non equilibrium projection operator formalism, the correlation functions and fluctuation…

无序系统与神经网络 · 物理学 2009-10-31 A. Latz

Expanding upon previous work, using the path-integral formalism we derive expressions for the one-particle reduced density matrix and the two-point correlation function for a quadratic system of bosons that interact through a general class…

量子气体 · 物理学 2021-12-15 Timour Ichmoukhamedov , Jacques Tempere

A mode-coupling theory for the slow single-particle dynamics in fluids adsorbed in disordered porous media is derived, which complements previous work on the collective dynamics [V. Krakoviack, Phys. Rev. E 75, 031503 (2007)]. Its…

无序系统与神经网络 · 物理学 2009-06-10 V. Krakoviack

Most present applications of time-dependent density functional theory use adiabatic functionals, i.e. the effective potential at time t is determined solely by the density at the same time. This paper discusses a method that aims to go…

强关联电子 · 物理学 2009-11-10 Yair Kurzweil , Roi Baer