arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1604.04836cond-mat.stat-mechphysics.soc-ph
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退火多态多数表决模型中的不连续相变

Discontinuous phase transition in an annealed multi-state majority-vote model

Guofeng Li, Hanshuang Chen, Feng Huang, Chuansheng Shen

摘要:

本文将原含噪声的MV模型从两个状态推广到任意$q$状态,其中$q$为不小于2的整数.重点比较了两态MV(MV 2)模型和三态MV(MV 3)模型的相变性质。通过广泛的蒙特卡罗模拟和平均场分析,我们发现MV 3模型经历了一个不连续的有序-无序相变,而MV 2模型则经历了一个连续的相变。这种不连续过渡的中心特征是随着噪声强度向前和向后的强滞后行为。在滞后区内,无序相和有序相共存。

英文摘要:

In this paper, we generalize the original majority-vote (MV) model with noise from two states to arbitrary $q$ states, where $q$ is an integer no less than two. The main emphasis is paid to the comparison on the nature of phase transitions between the two-state MV (MV2) model and the three-state MV (MV3) model. By extensive Monte Carlo simulation and mean-field analysis, we find that the MV3 model undergoes a discontinuous order-disorder phase transition, in contrast to a continuous phase transition in the MV2 model. A central feature of such a discontinuous transition is a strong hysteresis behavior as noise intensity goes forward and backward. Within the hysteresis region, the disordered phase and ordered phase are coexisting.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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