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相关论文: On the $p,q$-binomial distribution and the Ising m…

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The magnetization behavior of q-periodic antiferromagnetic spin 1/2 Heisenberg chains under uniform magnetic fields is investigated in a background of disorder exchange distributions. By means of both real space decimation procedures and…

强关联电子 · 物理学 2009-10-31 D. C. Cabra , A. De Martino , M. D. Grynberg , S. Peysson , P. Pujol

Recently we have performed large-scale average magnetization studies of the Ising model for the square, honeycomb, triangular, and simple cubic lattice. We want to complement those studies with the structurally more complicated…

统计力学 · 物理学 2022-10-17 Tuncer Kaya

Piezomagnetism, linear response between strain and magnetic field, is relatively unexplored cross-correlation but has promising potential as a novel probe of time-reversal-symmetry breaking in various classes of materials. Interestingly,…

强关联电子 · 物理学 2024-09-24 Mikiya Tomikawa , Ryo Araki , Atsutoshi Ikeda , Ai Nakamura , Dai Aoki , Kenji Ishida , Shingo Yonezawa

We study the distribution of finite size pseudo-critical points in a one-dimensional random quantum magnet with a quantum phase transition described by an infinite randomness fixed point. Pseudo-critical points are defined in three…

无序系统与神经网络 · 物理学 2008-03-12 Ferenc Iglói , Yu-Cheng Lin , Heiko Rieger , Cécile Monthus

This paper has two parts. In the first one, we prove that an invariant dp-minimal type is either finitely satisfiable or definable. We also prove that a definable version of the (p,q)-theorem holds in dp-minimal theories of small or medium…

逻辑 · 数学 2015-09-24 Pierre Simon

In a ferromagnetic Ising system, domain pattern formation, i.e., phase-ordering, occurs after a sudden quench. We propose the method to simulate the pattern formation dynamics by an Ising machine. We demonstrate that the method reproduces…

统计力学 · 物理学 2021-02-01 Kanon Mukai , Kazue Kudo

The study of the Ising model from a percolation perspective has played a significant role in the modern theory of critical phenomena. We consider the celebrated square-lattice Ising model and construct percolation clusters by placing bonds,…

统计力学 · 物理学 2025-09-30 Tao Chen , Jinhong Zhu , Wei Zhong , Sheng Fang , Youjin Deng

The divergences of both the length and time scales, at the magnetization- reversal transition in Ising model under a pulsed field, have been studied in the linearized limit of the mean field theory. Both length and time scales are shown to…

统计力学 · 物理学 2009-10-31 R. B. Stinchcombe , A. Misra , B K Chakrabarti

We present a theoretical framework which is generally applicable to the study of time scales of activated processes in systems with Brownian type dynamics. This framework is applied to a prototype system: magnetization reversal times in the…

统计力学 · 物理学 2009-11-07 Kevin Brendel , G. T. Barkema , Henk van Beijeren

This paper aims to examine the characteristics of the posterior distribution of covariance/precision matrices in a "large $p$, large $n$" scenario, where $p$ represents the number of variables and $n$ is the sample size. Our analysis…

统计理论 · 数学 2026-02-02 Partha Sarkar , Kshitij Khare , Malay Ghosh , Matt P. Wand

Changes in magnetic critical behaviour of quenched structurally-disordered magnets are usually exemplified in experiments and in MC simulations by diluted systems consisting of magnetic and non-magnetic components. By our study we aim to…

无序系统与神经网络 · 物理学 2023-11-30 Maxym Dudka , Mariana Krasnytska , Juan J. Ruiz-Lorenzo , Yurij Holovatch

This chapter provides a general introduction of network modeling in psychometrics. The chapter starts with an introduction to the statistical model formulation of pairwise Markov random fields (PMRF), followed by an introduction of the PMRF…

统计方法学 · 统计学 2018-06-08 Sacha Epskamp , Gunter K. J. Maris , Lourens J. Waldorp , Denny Borsboom

We propose a variant of Ising model, called the Seeded Ising Model, to model probabilistic nature of human iris templates. This model is an Ising model in which the values at certain lattice points are held fixed throughout Ising model…

应用统计 · 统计学 2018-09-19 Song-Hwa Kwon , Hyeong In Choi , Sung Jin Lee , Nam-Sook Wee

We study the exact distributions of runs of a fixed length in variation which considers binary trials for which the probability of ones is geometrically varying. The random variable $E_{n,k}$ denote the number of success runs of a fixed…

概率论 · 数学 2022-10-21 Jungtaek Oh , Dae-Gyu Jang

The zero-temperature Ising model is known to reach a fully ordered ground state in sufficiently dense random graphs. In sparse random graphs, the dynamics gets absorbed in disordered local minima at magnetization close to zero. Here, we…

物理与社会 · 物理学 2023-05-31 Armin Pournaki , Eckehard Olbrich , Sven Banisch , Konstantin Klemm

We study the question of identity testing for structured distributions. More precisely, given samples from a {\em structured} distribution $q$ over $[n]$ and an explicit distribution $p$ over $[n]$, we wish to distinguish whether $q=p$…

数据结构与算法 · 计算机科学 2014-10-10 Ilias Diakonikolas , Daniel M. Kane , Vladimir Nikishkin

The influence of the tail features of the local magnetic field probability density function (PDF) on the ferromagnetic Ising model is studied in the limit of infinite range interactions. Specifically, we assign a quenched random field whose…

统计力学 · 物理学 2009-07-30 Silvio M. Duarte Queiros , Nuno Crokidakis , Diogo O. Soares-Pinto

We give a precise numerical solution for decorated Ising models on the simple cubic lattice which show ferromagnetism, compensation points, and reentrant behaviour. The models, consisting of $S={1\over 2}$ spins on a simple cubic lattice,…

凝聚态物理 · 物理学 2009-11-10 J. Oitmaa , W. Zheng

The Ising model is a simple statistical model for ferromagnetism. There are analytic solutions for low dimensions and very efficient Monte Carlo methods, such as cluster algorithms, for simulating this model in special cases. However most…

计算物理 · 物理学 2021-08-25 Johann Ostmeyer , Evan Berkowitz , Thomas Luu , Marcus Petschlies , Ferenc Pittler

In the post-Moore era, the need for efficient solutions to non-deterministic polynomial-time (NP) problems is becoming more pressing. In this context, the Ising model implemented by the probabilistic computing systems with probabilistic…

应用物理 · 物理学 2025-02-28 Chao Fang , Yihan He , Xiao Gong , Gengchiau Liang
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