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相关论文: Three-dimensional Ising model in the fixed-magneti…

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The time evolution of the three-dimensional critical Ising model relaxing from a nonequilibrium initial state is studied by means of Monte Carlo simulation. We observe the characteristic initial increase of the (spatially) averaged…

凝聚态物理 · 物理学 2009-10-22 Z. -B. Li , U. Ritschel , B. Zheng

We study the ferromagnetic transverse-field Ising model with quenched disorder at $T = 0$ in one and two dimensions by means of stochastic series expansion quantum Monte Carlo simulations using a rigorous zero-temperature scheme. Using a…

强关联电子 · 物理学 2024-08-28 C. Krämer , J. A. Koziol , A. Langheld , M. Hörmann , K. P. Schmidt

The influence of correlated impurities on the critical behaviour of the 3D Ising model is studied using Monte Carlo simulations. Spins are confined into the pores of simulated aerogels (diffusion limited cluster-cluster aggregation) in…

统计力学 · 物理学 2009-11-11 Ricardo Paredes , Carlos Vasquez

We study two different versions of the site-diluted Ising model in three dimensions with long-range spatially correlated disorder by Monte Carlo means. We use finite-size scaling techniques to compute the critical exponents of these…

无序系统与神经网络 · 物理学 2009-10-31 H. G. Ballesteros , G. Parisi

The quantum-critical properties of the transverse-field Ising model with algebraically decaying interactions are investigated by means of stochastic series expansion quantum Monte Carlo, on both the one-dimensional linear chain and the…

统计力学 · 物理学 2021-06-30 J. Koziol , A. Langheld , S. C. Kapfer , K. P. Schmidt

We study hysteresis for a two-dimensional, spin-1/2, nearest-neighbor, kinetic Ising ferromagnet in an oscillating field, using Monte Carlo simulations. The period-averaged magnetization is the order parameter for a proposed dynamic phase…

统计力学 · 物理学 2009-10-31 S. W. Sides , P. A. Rikvold , M. A. Novotny

The interface tension in the three-dimensional Ising model in the low temperature phase is investigated by means of the Monte Carlo method. Together with other physically relevant quantities it is obtained from a calculation of time-slice…

高能物理 - 格点 · 物理学 2010-12-23 Sabine Klessinger , Gernot Muenster

Recent Monte Carlo simulations of the critical point of the restricted primitive model for ionic solutions are reported. Only the continuum version of the model is considered. A finite size scaling analysis based in the Bruce-Wilding…

统计力学 · 物理学 2007-05-23 Jean-Michel Caillol

We study the transverse-field Ising model on a square lattice with bond- and site-dilution at zero temperature by stochastic series expansion quantum Monte Carlo simulations. Tuning the transverse field $h$ and the dilution $p$, the quantum…

强关联电子 · 物理学 2025-05-13 C. Krämer , M. Hörmann , K. P. Schmidt

Due to a ferromagnetic in-chain coupling between Co$^{3+}$ ions at trigonal sites, chains Co$_2$O$_6$ are considered as large rigid spin moments. The antiferromagnetic Ising model on the triangular lattice is applied to describe an…

强关联电子 · 物理学 2009-11-11 Yuri B. Kudasov

We describe a systematic method for complete enumeration of configuration classes (CCs) of the spin-1/2 Ising model in the energy-magnetization plane. This technique is applied to the antiferromagnetic Ising model in an external magnetic…

统计力学 · 物理学 2011-12-07 Bruno Jeferson Lourenço , Ronald Dickman

There exists an entire family of universal PDFs of the magnetization mode of the three dimensional Ising model parameterized by $\zeta = \lim_{L,\xi_{\infty}}L/\xi_{\infty}$ which is the ratio of the system size $L$ to the bulk correlation…

统计力学 · 物理学 2025-12-15 Sankarshan Sahu

Ising models with nearest-neighbor ferromagnetic random couplings on a square lattice with a (1,1) surface are studied, using Monte Carlo techniques and star-tiangle transformation method. In particular, the critical exponent of the surface…

无序系统与神经网络 · 物理学 2009-10-30 W. Selke , F. Szalma , P. Lajko , F. Igloi

We study magnetic properties of the $S=1/2$ Ising-like XXZ model on the Shastry-Sutherland lattices with long-range interactions, using the quantum Monte Carlo method. This model shows magnetization plateau phases at one-half and one-third…

强关联电子 · 物理学 2015-05-14 Takahumi Suzuki , Yusuke Tomita , Naoki Kawashima

The ferromagnetic Ising model is a model of a magnetic material and a central topic in statistical physics. It also plays a starring role in the algorithmic study of approximate counting: approximating the partition function of the…

数据结构与算法 · 计算机科学 2021-11-05 Charlie Carlson , Ewan Davies , Alexandra Kolla , Will Perkins

We study the spin-spin correlation function in or near the T=0 ground state of the antiferromagnetic Ising model on a triangular lattice. At zero temperature its modulation on the sublattices gives rise to two Bragg peaks in the structure…

统计力学 · 物理学 2008-02-03 Jesper Lykke Jacobsen , Hans C. Fogedby

Using Monte Carlo techniques and a star-triangle transformation, Ising models with random, 'strong' and 'weak', nearest-neighbour ferromagnetic couplings on a square lattice with a (1,1) surface are studied near the phase transition. Both…

统计力学 · 物理学 2009-10-30 F. Igloi , P. Lajko , W. Selke , F. Szalma

We study a Hamiltonian system describing a three-spin-1/2 cluster-like interaction competing with an Ising-like anti-ferromagnetic interaction. We compute free energy, spin correlation functions and entanglement both in the ground and in…

The motivation for this paper is the analysis of the fixed-density Ising lattice gas in the presence of a gravitational field. This is a seen as a particular instance of an Ising model with a slowly varying magnetic field in the fixed…

概率论 · 数学 2024-10-15 Yacine Aoun , Sébastien Ott , Yvan Velenik

The dynamical critical exponent of the two-dimensional spin-flip Ising model is evaluated by a Monte Carlo renormalization group method involving a transformation in time. The results agree very well with a finite-size scaling analysis…

凝聚态物理 · 物理学 2009-10-22 Martin-D. Lacasse , Jorge Vinals , Martin Grant