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arXiv 1609.08573cond-mat.stat-mech
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$S$-状态块选举模型中的噪声诱导相变

Noise induced phase transition in the $S$-state block voter model

J. M. de Araújo, C. I. N. Sampaio Filho, F. G. B. Moreira

摘要:

我们利用MonteCarlo模拟和有限尺寸标度理论研究了正方格子上的$S$-态块选举模型的相变和临界行为。结果表明,在给定的噪声参数下,系统呈现有序-无序相变,从$S\le4$的连续相变变为$S\ge5$的不连续相变.此外,对于连续跃迁情形,临界指数的计算表明,本文所研究的非平衡态模型系统与其对应的平衡态二维S态Potts模型属于同一普适类.我们还提供了第一次估计的长程指数的磁化,磁化率,和衍生物的Binder的累积量的相互作用的范围上的依赖。

英文摘要:

We use Monte Carlo simulations and finite-size scaling theory to investigate the phase transition and critical behavior of the $S$-state block voter model on square lattices. It is shown that the system exhibits an order-disorder phase transition at a given value of the noise parameter, which changes from a continuous transition for $S\le4$ to a discontinuous transition for $S\ge5$. Moreover, for the cases of continuous transition, the calculated critical exponents indicate that the present studied nonequilibrium model system is in the same universality class of its counterpart equilibrium two-dimensional S-state Potts model. We also provide a first estimation of the long-range exponents governing the dependence on the range of interaction of the magnetization, the susceptibility, and the derivative of Binder's cumulant.

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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