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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

It is believed that the $\pm J$ Ising spin-glass does not order at finite temperatures in dimension $d=2$. However, using a graphical representation and a contour argument, we prove rigorously the existence of a finite-temperature phase…

无序系统与神经网络 · 物理学 2022-09-21 Yan Ru Pei , Massimiliano Di Ventra

We review 15 years of theoretical and experimental work on the non-linear response of glassy systems. We argue that an anomalous growth of the peak value of non-linear susceptibilities is a signature of growing "amorphous order" in the…

无序系统与神经网络 · 物理学 2021-01-12 Giulio Biroli , Jean-Philippe Bouchaud , Francois Ladieu

Spherical spin glasses are canonical models for smooth random functions in high dimensions. In this review, we survey several interrelated lines of research on their geometric structure. We begin with results concerning critical points and…

概率论 · 数学 2026-01-23 Eliran Subag

We use a random pinning procedure to investigate stable glassy states associated with large deviations of the activity in a model glass-former. We pin particles both from active (equilibrium) configurations and from stable (inactive) glassy…

统计力学 · 物理学 2014-07-02 Christopher J. Fullerton , Robert L. Jack

We argue that complex systems must possess long range correlations and illustrate this idea on the example of the mean field spin glass model. Defined on the complete graph, this model has no genuine concept of distance, but the long range…

无序系统与神经网络 · 物理学 2011-02-23 Alain Billoire , Imre Kondor , Jovanka Lukic , Enzo Marinari

We analyze operational risk in terms of a spin glass model. Several regimes are investigated, as a functions of the parameters that characterize the dynamics. The system is found to be robust against variations of these parameters. We…

风险管理 · 定量金融 2010-02-19 M. Bardoscia , P. Facchi , S. Pascazio , A. Trullo

Vector spin glasses are known to show two different kinds of phase transitions in presence of an external field: the so-called de Almeida-Thouless and Gabay-Toulouse lines. While the former has been studied to some extent on several…

无序系统与神经网络 · 物理学 2018-01-24 Cosimo Lupo , Federico Ricci-Tersenghi

Spin glass theory studies the structure of sublevel sets and minima (or near-minima) of certain classes of random functions in high dimension. Near-minima of random functions also play an important role in high-dimensional statistics and…

概率论 · 数学 2026-02-27 Andrea Montanari

Determination of the precise location of the multicritical point and phase boundary is a target of active current research in the theory of spin glasses. In this short note we develop a duality argument to predict the location of the…

无序系统与神经网络 · 物理学 2009-11-07 Hidetoshi Nishimori , Koji Nemoto

We derive a mode-coupling theory for the slow dynamics of fluids confined in disordered porous media represented by spherical particles randomly placed in space. Its equations display the usual nonlinear structure met in this theoretical…

软凝聚态物质 · 物理学 2007-05-23 V. Krakoviack

In a $p$-spin interaction spherical spin-glass model both the spins and the couplings are allowed to change in the course of time. The spins are coupled to a heat bath with temperature $T$, while the coupling constants are coupled to a bath…

无序系统与神经网络 · 物理学 2009-10-31 A. E. Allahverdyan , Th. M. Nieuwenhuizen , D. B. Saakian

We present a combination of heuristic and rigorous arguments indicating that both the pure state structure and the overlap structure of realistic spin glasses should be relatively simple: in a large finite volume with coupling-independent…

无序系统与神经网络 · 物理学 2009-10-30 C. M. Newman , D. L. Stein

The origin of thermal and quantum entanglement in a class of three-dimensional spin models, at low momenta, is traced to purely topological reasons. The establishment of the result is facilitated by the gauge principle which, when used in…

高能物理 - 理论 · 物理学 2010-10-27 V. V. Sreedhar

Using Monte Carlo simulations, we have studied isothermal aging of three-dimensional Ising spin-glass model focusing on quasi-equilibrium behavior of the spin auto-correlation function. Weak violation of the time translational invariance in…

无序系统与神经网络 · 物理学 2009-10-31 Tatsuo Komori , Hajime Yoshino , Hajime Takayama

We summarize a theoretical framework based on global time-reparametrization invariance that explains the origin of dynamic fluctuations in glassy systems. We introduce the main ideas without getting into much technical details. We describe…

无序系统与神经网络 · 物理学 2009-11-13 Claudio Chamon , Leticia F. Cugliandolo

We study thermally activated, low temperature equilibrium dynamics of elastic systems pinned by disorder using one loop functional renormalization group (FRG). Through a series of increasingly complete approximations, we investigate how the…

无序系统与神经网络 · 物理学 2009-11-10 Leon Balents , Pierre Le Doussal

Dynamics of spin-glasses subjected to slow continuous changes of working enviroment such as slow changes of temperature or interaction bonds are studied based on scaling arguments and numerical simulations of continuous bond changes. Such…

无序系统与神经网络 · 物理学 2009-11-10 Hajime Yoshino , Petra E. Jonsson

A recently introduced Renormalization Group approach to frustrated spin models is applied in three dimensions through Monte Carlo computations. A class of spin glass models is analysed, with correlated disorder variables given by a Z_2…

统计力学 · 物理学 2007-05-23 Leonardo Gnesi , Roberto Petronzio , Francesco Rosati

Some invariances under perturbations of the spin glass phase are introduced, their proofs outlined and their consequences illustrated as factorisation rules for the overlap distribution. A comparison between the state of the art for mean…

数学物理 · 物理学 2012-12-04 Pierluigi Contucci