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Discrete quantum trajectories of systems under random unitary gates and projective measurements have been shown to feature transitions in the entanglement scaling that are not encoded in the density matrix. In this paper, we study the…

无序系统与神经网络 · 物理学 2020-09-24 Nicolai Lang , Hans Peter Büchler

The purpose of this modest note is to point out that the proof of the recent result of Huchcroft concerning continuity of phase transition in Bernoulli percolation is applicable to the setting of the Ising model with free boundary…

概率论 · 数学 2016-06-14 Aran Raoufi

Deformation of Ising Hamiltonian by means of replacing a site spin $s_i$ by $s_i^q$ and statistics generalization with help of the substituting deformed probability $p_i^q$ instead of $p_i$ are studied jointly within mean--field scheme.…

统计力学 · 物理学 2007-05-23 Alexander I. Olemskoi , Olga V. Yushchenko

We report studies of the behaviour of a single driven domain wall in the 2-dimensional non-equilibrium zero temperature random-field Ising model, closely above the depinning threshold. It is found that even for very weak disorder, the…

无序系统与神经网络 · 物理学 2009-10-31 Barbara Drossel , Karin Dahmen

We study the effects of dissipation on a randomly dilute transverse-field Ising magnet at and close to the percolation threshold. For weak transverse fields, a novel percolation quantum phase transition separates a super-paramagnetic…

无序系统与神经网络 · 物理学 2008-03-04 J. A. Hoyos , Thomas Vojta

Controlled experimental studies of percolation are challenging due to difficulties in tuning site connectivity, isolating local interactions, and mitigating finite-size effects. In this work, we experimentally investigate percolation with a…

We study the surface phase diagram of the three-dimensional kinetic Ising model below the equilibrium critical point subjected to a periodically oscillating magnetic field. Changing the surface interaction strength as well as the period of…

统计力学 · 物理学 2014-03-19 Keith Tauscher , Michel Pleimling

We performed two-dimensional simulated tempering (ST) simulations of the two-dimensional Ising model with different lattice sizes in order to investigate the two-dimensional ST's applicability to dealing with phase transitions and to study…

统计力学 · 物理学 2015-06-05 Tetsuro Nagai , Yuko Okamoto

The phase transitions in the transverse field Ising model in a competing spatially modulated (periodic and oscillatory) longitudinal field are studied numerically. There is a multiphase point in absence of the transverse field where the…

统计力学 · 物理学 2016-08-31 Parongama Sen

Through large-scale numerical simulations, we study the phase ordering kinetics of the $2d$ Ising Model after a zero-temperature quench from a high-temperature homogeneous initial condition. Analysing the behaviour of two important…

统计力学 · 物理学 2018-09-19 F. Insalata , F. Corberi , L. F. Cugliandolo , M. Picco

We study a two-dimensional kinetic Ising model with Swendsen-Wang dynamics, replacing the usual percolation on top of Ising clusters by explosive percolation. The model exhibits a reversible first-order phase transition with hysteresis.…

统计力学 · 物理学 2012-07-02 Sebastian Angst , Silvio R. Dahmen , Haye Hinrichsen , Alfred Hucht , Martin P. Magiera

Phase transitions are a central theme of statistical mechanics, and of probability more generally. Lattice spin models represent a general paradigm for phase transitions in finite dimensions, describing ferromagnets and even some fluids…

概率论 · 数学 2017-07-04 Hugo Duminil-Copin

We perform simulations of random Ising models defined over small-world networks and we check the validity and the level of approximation of a recently proposed effective field theory. Simulations confirm a rich scenario with the presence of…

无序系统与神经网络 · 物理学 2015-03-13 A. L. Ferreira , J. F. F. Mendes , M. Ostilli

We briefly introduce hysteresis in spatially extended systems and the dynamic phase transition observed as the frequency of the oscillating field increases beyond a critical value. Hysteresis and the decay of metastable phases are closely…

统计力学 · 物理学 2007-05-23 P. A. Rikvold , G. Korniss , C. J. White , M. A. Novotny , S. W. Sides

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

Using numerical simulations we investigate the properties of the dynamic phase transition that is encountered in the three-dimensional Ising model subjected to a periodically oscillating magnetic field. The values of the critical exponents…

统计力学 · 物理学 2013-04-01 Hyunhang Park , Michel Pleimling

We study percolation transition of run and tumble particles (RTPs) on a two dimensional square lattice. RTPs in these models run to the nearest neighbour along their internal orientation with unit rate, and to other nearest neighbours with…

统计力学 · 物理学 2024-12-30 Soumya K. Saha , Aikya Banerjee , P. K. Mohanty

The identification of phase transition points, beta_c, with the percolation thresholds of suitably defined clusters of spins has proved immensely fruitful in many areas of statistical mechanics. Some time ago Kertesz suggested that such…

统计力学 · 物理学 2008-11-26 W. Janke , D. A. Johnston , M. Stathakopoulos

Based on extensive parallel-tempering Monte Carlo simulations, we investigate the relationship between cluster percolation and equilibrium ordering phenomena in the three-dimensional $\pm J$ random-bond Ising model as one varies the…

无序系统与神经网络 · 物理学 2026-03-05 Lambert Münster , Martin Weigel

In this work we report Monte Carlo simulations of a 2D Ising model, in which the statistics of the Metropolis algorithm is replaced by the nonextensive one. We compute the magnetization and show that phase transitions are present for $q\neq…

统计力学 · 物理学 2011-07-01 D. O. Soares-Pinto , I. S. Oliveira , M. S. Reis