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We study temporal behavior of a quantum system under a slow external perturbation, which drives the system across a second order quantum phase transition. It is shown that despite the conventional adiabaticity conditions are always violated…

统计力学 · 物理学 2007-05-23 Anatoli Polkovnikov

We study the effect of a one-dimensional driving field on the interface between two coexisting phases in a two dimensional model. This is done by considering an Ising model on a cylinder with Glauber dynamics in all sites and additional…

统计力学 · 物理学 2015-11-06 Or Cohen , David Mukamel

The behavior of many magnetic and dielectric solids, and the more contemporary magnetic super-lattices, is governed by dipolar interactions. They are anisotropic and long-ranged, having varied consequences ranging from ground states with…

统计力学 · 物理学 2021-08-25 Shikha Kumari , Sanjay Puri , Varsha Banerjee

In this article we study the sharpness of the phase transition for percolation models defined on top of planar spin systems. The two examples that we treat in detail concern the Glauber dynamics for the Ising model and a Dynamic Bootstrap…

概率论 · 数学 2021-05-28 Caio Alves , Gideon Amir , Rangel Baldasso , Augusto Teixeira

In this paper, we have exactly solved Glauber critical dynamics of the Gaussian model on three dimensions. Of course, it is much easy to apply to low dimensional case. The key steps are that we generalize the spin change mechanism from…

无序系统与神经网络 · 物理学 2009-11-07 Jian-Yang Zhu , Z. R. Yang

Over the last few years it was pointed out that certain observables of time-evolving quantum systems may have singularities at certain moments in time, mimicking the singularities physical systems have when undergoing phase transitions.…

统计力学 · 物理学 2019-09-11 V. Gurarie

We investigate the dynamical critical behavior of the two- and three-dimensional Ising model with Glauber dynamics in equilibrium. In contrast to the usual standing, we focus on the mean-squared deviation of the magnetization $M$, MSD$_M$,…

统计力学 · 物理学 2023-09-22 Zihua Liu , Erol Vatansever , Gerard T. Barkema , Nikolaos G. Fytas

We study the Ising model under a time-varying, but spatially homogeneous, Gaussian random magnetic field. In the Monte Carlo simulations, we go beyond the standard analysis of the order parameter by measuring the magnetization probability…

统计力学 · 物理学 2026-03-30 Sara Oliver-Bonafoux , Raul Toral , Amitabha Chakrabarti

By utilizing the effective-field theory based on the Glauber-type stochastic dynamics, the dynamic behaviors of the hexagonal Ising nanowire (HIN) system in the presence of a time dependent magnetic field are obtained. The time variations…

介观与纳米尺度物理 · 物理学 2015-06-18 Mehmet Ertas , Yusuf Kocakaplan

We study dissipative phase transitions in a system of two coupled fully-connected quantum Ising models interacting with an environment. The dynamics is governed by a Lindblad master equation combining coherent unitary evolution and…

统计力学 · 物理学 2026-05-01 Bidyut Dey , Andrea Nava , Domenico Giuliano

The kinetic Ising model on a n-isotopic chain is considered in the framework of Glauber dynamics. The chain is composed of N segments with n sites, each one occupied by a different isotope. Due to the isotopic mass difference, the n spins…

统计力学 · 物理学 2015-06-24 L. L. Goncalves , M. Lopez de Haro , J. Taguena-Martinez

We present a numerical study of the dynamics of the one-dimensional Ising model by applying the large-deviation method to describe ensembles of dynamical trajectories. In this approach trajectories are classified according to a dynamical…

统计力学 · 物理学 2011-12-19 Ernesto S Loscar , Antonia S J S Mey , Juan P Garrahan

Glauber dynamics of a bond-diluted Ising model on a Bethe lattice (a random graph with fixed connectivity) is investigated by an approximate theory which provides exact results for equilibrium properties. The time-dependent solutions of the…

统计力学 · 物理学 2015-05-18 Hiroki Ohta

We introduce and analyze a natural class of nonlinear dynamics for spin systems such as the Ising model. This class of dynamics is based on the framework of mass action kinetics, which models the evolution of systems of entities under…

概率论 · 数学 2024-12-24 Pietro Caputo , Alistair Sinclair

We investigate the dynamics following sudden quenches across quantum critical points belonging to different universality classes. Specifically, we use matrix product state methods to study the quantum Ising chain in the presence of two…

强关联电子 · 物理学 2013-05-07 C. Karrasch , D. Schuricht

In this article we study the phase transition phenomenon for the Ising model under the action of a non-uniform external magnetic field. We show that the Ising model on the hypercubic lattice with a summable magnetic field has a first-order…

数学物理 · 物理学 2017-08-01 Rodrigo Bissacot , Leandro Cioletti

Extending notions of phase transitions to nonequilibrium realm is a fundamental problem for statistical mechanics. While it was discovered that critical transitions occur even for transient states before relaxation as the singularity of a…

统计力学 · 物理学 2021-09-02 Ryusuke Hamazaki

We investigate a two-dimensional Ising model with long-range interactions that emerge from a generalization of the magnetic dipolar interaction in spin systems with in-plane spin orientation. This interaction is, in general, anisotropic…

统计力学 · 物理学 2009-11-10 Daniel Grüneberg , Alfred Hucht

A two-temperature lattice gas model with repulsive nearest-neighbour interactions is studied using Monte Carlo simulations and dynamical mean-field approximation. The evolution of the two-dimensional, half-filled system is described by an…

统计力学 · 物理学 2009-10-30 Attila Szolnoki

We study metastability and nucleation in a kinetic two-dimensional Ising model which is driven out of equilibrium by a small random perturbation of the usual dynamics at temperature T. We show that, at a mesoscopic/cluster level, a…

统计力学 · 物理学 2009-11-11 Pablo I. Hurtado , J. Marro , P. L. Garrido
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