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Melt supercooling leads to glass formation. Liquid-to-liquid phase transitions are observed depending on thermal paths. Viscosity, density and surface tension thermal dependences measured at heating and subsequent cooling show hysteresis…

材料科学 · 物理学 2016-12-21 Robert F. Tournier

We consider the ground state reorganization driven by an increasing nearest neighbor repulsion U for spinless fermions in a strongly disordered ring. When U -> 0, the electrons form a glass with Anderson localized states. At half filling, a…

强关联电子 · 物理学 2007-05-23 Dietmar Weinmann , Jean-Louis Pichard , Peter Schmitteckert , Rodolfo A. Jalabert

Network glasses are the physical prototype for many self-organized systems, ranging from proteins to computer science. Conventional theories of gases, liquids, and crystals do not account for the strongly material-selective character of the…

无序系统与神经网络 · 物理学 2007-05-23 P. Boolchand , G. Lucovsky , J. C. Phillips , M. F. Thorpe

Topological defects are typically quantified relative to ordered backgrounds. The importance of these defects to the understanding of physical phenomena including diverse equilibrium melting transitions from low temperature ordered to…

统计力学 · 物理学 2019-02-19 Z. Nussinov , N. B. Weingartner , F. S. Nogueira

A theoretical model is presented, describing the glassy freezing of electrons in the vicinity of disorder driven metal-insulator transitions. Our results indicate that the onset of glassy dynamics should emerge before the localization…

无序系统与神经网络 · 物理学 2009-11-10 V. Dobrosavljevic , A. A. Pastor

We derive a phase diagram for amorphous solids and liquid supercooled water and explain why the amorphous solids of water exist in several different forms. Application of large-deviation theory allows us to prepare such phases in computer…

统计力学 · 物理学 2015-06-16 David T Limmer , David Chandler

The function of a real network depends not only on the reliability of its own components, but is affected also by the simultaneous operation of other real networks coupled with it. Robustness of systems composed of interdependent network…

物理与社会 · 物理学 2015-07-10 Filippo Radicchi

We introduce models of generic rigidity percolation in two dimensions on hierarchical networks, and solve them exactly by means of a renormalization transformation. We then study how the possibility for the network to self organize in order…

统计力学 · 物理学 2015-05-13 J. Barré

Amorphous solids exhibit intrinsic, local structural transitions, that give rise to the well known quantum-mechanical two-level systems at low temperatures. We explain the microscopic origin of the electric dipole moment of these two-level…

无序系统与神经网络 · 物理学 2009-11-11 Vassiliy Lubchenko , Robert J. Silbey , Peter G. Wolynes

We show that there can be no direct first order transition between a Fermi liquid and an insulating electronic (Wigner) crystalline phase in a clean two-dimensional electron gas in a metal-oxide-semiconductor field-effect transistor…

介观与纳米尺度物理 · 物理学 2007-05-23 B. Spivak , S. Kivelson

Here we show that a new class of glasses composed of heavy metal oxides involving transition metals (V$_\text {2}$O$_\text{}$5-TeO$_\text{2}$), can surprisingly be designed from very basic tools using topology and rigidity of their…

材料科学 · 物理学 2015-06-17 Shibalik Chakraborty , P. Boolchand , M. Malki , M. Micoulaut

Glass-to-glass and liquid-to-liquid phase transitions were observed many years ago in bulk and confined water with or without applied pressure. It is shown that they result from the competition of two-liquid phases separated by an enthalpy…

无序系统与神经网络 · 物理学 2017-03-21 Robert F Tournier

A Monte Carlo method is used in order to simulate the competition between the molecular relaxation and crystallization times in the formation of a glass. The results show that nucleation is avoided during supercooling and produce…

无序系统与神经网络 · 物理学 2009-11-07 Adrian Huerta , Gerardo G. Naumis

Simple statistical agglomeration models can provide a universal link between the local structure and the glass transition temperature in network glasses. We first stress the physical features of the models and the hypothesis made, and then…

材料科学 · 物理学 2009-10-31 Matthieu Micoulaut

We give general topological rules which very accurately predict the chemical trends in glass transition temperature $T_g$ variation as a function of cross-linking. In multicomponent glasses, these chemical trends permit to distinguish…

无序系统与神经网络 · 物理学 2009-10-31 Matthieu Micoulaut , Gerardo G. Naumis

We present a simple mathematical framework for the description of the dynamics of glassy systems in terms of a random walk in a complex energy landscape pictured as a network of minima. We show how to use the tools developed for the study…

统计力学 · 物理学 2015-03-17 Paolo Moretti , Andrea Baronchelli , Alain Barrat , Romualdo Pastor-Satorras

Liquid crystals are phases of matter intermediate between crystals and liquids. Whereas classical liquid crystals have been known for a long time and are used in electro-optical displays, much less is known about their quantum counterparts.…

量子气体 · 物理学 2016-01-12 Zhigang Wu , Jens K. Block , Georg M. Bruun

Using positional data from video-microscopy of a two-dimensional colloidal system and from simulations of hard discs we determine the wave-vector-dependent normal mode spring constants in the supercooled fluid and glassy state,…

软凝聚态物质 · 物理学 2012-10-26 Christian L. Klix , Florian Ebert , Fabian Weysser , Matthias Fuchs , Georg Maret , Peter Keim

We develop a transferable machine learning model which predicts structural relaxation from amorphous supercooled liquid structures. The trained networks are able to predict dynamic heterogeneity across a broad range of temperatures and time…

软凝聚态物质 · 物理学 2024-02-27 Gerhard Jung , Giulio Biroli , Ludovic Berthier

This article discusses recent attempts to provide a deeper understanding of the thermoreversible "gel" state of colloidal matter and to unravel the analogies between gels at the colloidal level and gels at the molecular level, commonly…

软凝聚态物质 · 物理学 2009-11-13 Francesco Sciortino