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相关论文: Spin glasses and Stein's method

200 篇论文

The distribution of solutions of the Thouless-Anderson-Palmer equation is studied by extensive numerical experiments for fully connected 3-body interaction Ising spin glass models in a level of annealed calculation. A recent study predicted…

无序系统与神经网络 · 物理学 2015-06-25 Yukinori Tonosaki , Koujin Takeda , Yoshiyuki Kabashima

We analyze the zero-temperature behavior of the XY Edwards-Anderson spin glass model on a square lattice. A newly developed algorithm combining exact ground-state computations for Ising variables embedded into the planar spins with a…

无序系统与神经网络 · 物理学 2007-05-23 Martin Weigel , Michel J. P. Gingras

We use Stein characterizations to obtain new moment-type estimators for the parameters of three classical spherical distributions (namely the Fisher-Bingham, the von Mises-Fisher, and the Watson distributions) in the i.i.d. case. This leads…

统计理论 · 数学 2024-07-05 Adrian Fischer , Robert E. Gaunt , Yvik Swan

Most of the analytical studies on spin glasses are performed by using mean-field theory and renormalization group analysis. Analytical studies on finite-dimensional spin glasses are very challenging. In this short note, a possible exten-…

无序系统与神经网络 · 物理学 2018-01-17 Masayuki Ohzeki , Yuta Kudo , Kazuyuki Tanaka

We study the quenched complexity in spin-glass mean-field models satisfying the Becchi-Rouet-Stora-Tyutin supersymmetry. The outcome of such study, consistent with recent numerical results, allows, in principle, to conjecture the absence of…

无序系统与神经网络 · 物理学 2009-11-10 A. Crisanti , L. Leuzzi , G. Parisi , T. Rizzo

In this article, we develop Stein characterization for two-sided tempered stable distribution. Stein characterizations for normal, gamma, Laplace, and variance-gamma distributions already known in the literature follow easily. One can also…

概率论 · 数学 2022-01-06 Kalyan Barman , N. S. Upadhye

We investigate an extended +-J Ising spin glass model by using a gauge symmetry. This model has +-J1 interactions and +-J2 interactions. We show that a gauge symmetry is usable to study this model. The exact internal energy, the rigorous…

无序系统与神经网络 · 物理学 2012-07-27 Chiaki Yamaguchi

We suggest a possible approach to proving the M\'ezard-Parisi formula for the free energy in the diluted spin glass models, such as diluted K-spin or random K-sat model at any positive temperature. In the main contribution of the paper, we…

概率论 · 数学 2016-01-27 Dmitry Panchenko

The unifying feature of glass formers (such as polymers, supercooled liquids, colloids, granulars, spin glasses, superconductors, ...) is a sluggish dynamics at low temperatures. Indeed, their dynamics is so slow that thermal equilibrium is…

The frustrated Ising model in two dimensions is revisited. The frustration is quantified in terms of the number of non-trivial plaquettes which is invariant under the Nishimori gauge symmetry. The exact ground state energy is calculated…

高能物理 - 格点 · 物理学 2007-05-23 K. Langfeld , M. Quandt , W. Lutz , H. Reinhardt

This monograph provides a rigorous overview of theoretical and methodological aspects of probabilistic inference and learning with Stein's method. Recipes are provided for constructing Stein discrepancies from Stein operators and Stein…

机器学习 · 统计学 2026-03-10 Qiang Liu , Lester Mackey , Chris Oates

For many real spin-glass materials, the Edwards-Anderson model with continuous-symmetry spins is more realistic than the rather better understood Ising variant. In principle, the nature of an occurring spin-glass phase in such systems might…

无序系统与神经网络 · 物理学 2008-04-28 Martin Weigel , Michel J. P. Gingras

In these two lectures I review our theoretical understanding of spin glasses paying a particular attention to the basic physical ideas. We introduce the replica method and we describe its probabilistic consequences (we stress the recently…

无序系统与神经网络 · 物理学 2007-05-23 Giorgio Parisi

We use a random pinning procedure to study amorphous order in two glassy spin models. On increasing the concentration of pinned spins at constant temperature, we find a sharp crossover (but no thermodynamic phase transition) from bulk…

统计力学 · 物理学 2015-03-19 Robert L. Jack , Ludovic Berthier

Here I will review the theoretical results that have been obtained for spin glasses. I will concentrate my attention on the predictions of the mean field approach in three dimensional systems and on its numerical and experimental…

无序系统与神经网络 · 物理学 2009-11-13 Giorgio Parisi

We study the 4d Heisenberg spin glass model with Gaussian nearest-neighbor interactions. We use finite size scaling to analyze the data. We find a behavior consistent with a finite temperature spin glass transition. Our estimates for the…

凝聚态物理 · 物理学 2009-10-22 B. Coluzzi

The richness of the mean-field solution of simple glasses leaves many of its features challenging to interpret. A minimal model that illuminates glass physics the same way the random energy model clarifies spin glass behavior would…

无序系统与神经网络 · 物理学 2025-03-14 Gilles Bonnet , Patrick Charbonneau , Giampaolo Folena

In this article, we present the theoretical basis for an approach to Stein's method for probability distributions on Riemannian manifolds. Using a semigroup representation for the solution to the Stein equation, we use tools from stochastic…

概率论 · 数学 2020-01-28 James Thompson

We use a mixture of a polymer and its dimer to control dynamics in a manner inspired by \emph{pinning} a fraction of the system. In our system of $\alpha$-methyl styrene, where the polymer has a glass transition at higher temperature than…

软凝聚态物质 · 物理学 2021-10-29 Genki Kikumoto , Naohiro Torii , Koji Fukao , C. Patrick Royall , Haruhiko Yao , Yasuo Saruyama , Soichi Tatsumi

We develop a general approach to Stein's method for approximating a random process in the path space $D([0,T]\to R^d)$ by a real continuous Gaussian process. We then use the approach in the context of processes that have a representation as…

概率论 · 数学 2024-01-24 A. D. Barbour , Nathan Ross , Guangqu Zheng