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相关论文: Thermodynamic description of a dynamical glassy tr…

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It has been recently shown that one can understand the Prigogine-Defay ratio at the glass transition in terms of freezing into one of the many inherent states of the undercooled liquid. In the present paper, the treatment is extended to the…

无序系统与神经网络 · 物理学 2016-03-21 U. Buchenau

The low temperature phase of discontinuous mean-field spin glasses is characterized by the appearance of an exponential number of metastable states. Which ones among these states dominate the out-of-equilibrium dynamics of these systems? In…

无序系统与神经网络 · 物理学 2009-11-10 Andrea Montanari , Federico Ricci-Tersenghi

In this paper we review a recent proposal to understand the long time limit of glassy dynamics in terms of an appropriate Markov Chain. [1]. The advantages of the resulting construction are many. The first one is that it gives a quasi…

无序系统与神经网络 · 物理学 2016-04-19 Silvio Franz , Giorgio Parisi , Federico Ricci-Tersenghi , Pierfrancesco Urbani

A quantitative application to real supercooled liquids of the mean-field scenario for the glass transition ($T_g$) is proposed. This scenario, based on an analogy with spin-glass models, suggests a unified picture of the mode-coupling…

无序系统与神经网络 · 物理学 2009-10-31 V. Krakoviack , C. Alba-Simionesco

We introduce a simple two-dimensional spin model with short-range interactions which shows glassy behavior despite a Hamiltonian which is completely homogeneous and possesses no randomness. We solve exactly for both the static partition…

统计力学 · 物理学 2009-10-30 M. E. J. Newman , Cristopher Moore

We study the stochastic relaxation dynamics of the Ising p-spin model on a random graph, a well-known model with glassy dynamics at low temperatures. We introduce and discuss a new closure scheme for the master equation governing the…

统计力学 · 物理学 2024-05-27 David Machado , Roberto Mulet , Federico Ricci-Tersenghi

There are deep analogies between the melting dynamics in systems with a first order phase transition and the dynamics from equilibrium in super-cooled liquids. For a class of Ising spin models undergoing a first order transition - namely…

统计力学 · 物理学 2011-01-25 Florent Krzakala , Lenka Zdeborová

A picture for thermodynamics of the glassy state is introduced. It assumes that one extra parameter, the effective temperature, is needed to describe the glassy state. This explains the classical paradoxes concerning the Ehrenfest relations…

无序系统与神经网络 · 物理学 2009-10-31 Th. M. Nieuwenhuizen

We have studied dynamical behaviour of the infinite-range Ising spin glass model with $p$-spin interaction above and below the transition into the non-ergodic phase. The transition is continuous at sufficiently high external magnetic field.…

凝聚态物理 · 物理学 2007-05-23 D. M. Kagan , M. V. Feigelman

The dynamical behavior of a kind of models with hierarchically constrained dynamics is investigated. The models exhibit many properties resembling real structural glasses. In particular, we focus on the study of time-dependent temperature…

统计力学 · 物理学 2009-11-07 A. Prados , J. J. Brey

We study analytically the dynamics of a generalized p-spin model, starting with a thermalized initial condition. The model presents birth and death of states, hence the dynamics (even starting at equilibrium) may go out of equilibrium when…

无序系统与神经网络 · 物理学 2009-11-11 Barbara Capone , Tommaso Castellani , Irene Giardina , Federico Ricci-Tersenghi

The spherical p-spin model is not only a fundamental model in statistical mechanics of disordered system, but has recently gained popularity since many hard problems in machine learning can be mapped on it. Thus the study of the out of…

无序系统与神经网络 · 物理学 2020-09-02 Giampaolo Folena , Silvio Franz , Federico Ricci-Tersenghi

A key open question in the glass transition field is whether a finite temperature thermodynamic transition to the glass state exists or not. Recent simulations of coupled replicas in atomistic models have found signatures of a static…

统计力学 · 物理学 2015-06-18 Juan P. Garrahan

We will review some of the theoretical progresses that have been recently done in the study of slow dynamics of glassy systems: the general techniques used for studying the dynamics in the mean field approximation and the emergence of a…

凝聚态物理 · 物理学 2009-10-22 Giorgio Parisi

We show that applying simple dynamical rules to Baxter's eight-vertex model leads to a system which resembles a glass-forming liquid. There are analogies with liquid, supercooled liquid, glassy and crystalline states. The disordered phases…

统计力学 · 物理学 2007-05-23 Robert L. Jack , Juan P. Garrahan , David Sherrington

Existing theories explain spin glass transition in terms of a phase transition and order parameters, and assume the existence of a distinct spin glass phase. In addition to problems related to clarifying the nature of this phase, the common…

无序系统与神经网络 · 物理学 2015-05-20 Kostya Trachenko

When a liquid melt is cooled, a glass or phase transition can be obtained depending on the cooling rate. Yet, this behavior has not been clearly captured in energy landscape models. Here a model is provided in which two key ingredients are…

统计力学 · 物理学 2015-10-12 Gerardo G. Naumis

We numerically study a nondisordered lattice spin system with a first order liquid-crystal transition, as a model for supercooled liquids and glasses. Below the melting temperature the system can be kept in the metastable liquid phase, and…

统计力学 · 物理学 2009-11-07 Andrea Cavagna , Irene Giardina , Tomas S. Grigera

In this paper we develop a method introduced by one of us to study metastable states in spin glasses. We consider a `potential function' defined as the free energy of a system at a given temperature $T$ constrained to have a fixed overlap…

凝聚态物理 · 物理学 2009-10-28 S. Franz , G. Parisi

A simple, non-disordered spin model has been studied in an effort to understand the origin of the precipitous slowing down of dynamics observed in supercooled liquids approaching the glass transition. A combination of Monte Carlo…

统计力学 · 物理学 2009-11-07 Hui Yin , Bulbul Chakraborty