arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1905.04595cond-mat.stat-mech
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Barabási-Albert和Cubic网络上的三态多数投票模型及临界指数的酉关系

Three-state Majority-Vote Model on Barabási-Albert and Cubic Networks and the Unitary Relation for Critical Exponents

André L. M. Vilela, Bernardo J. Zubillaga, Chao Wang, Minggang Wang, Ruijin Du, H. Eugene Stanley

摘要:

本文研究了无标度网络和规则网络上带噪声的三态多数投票模型。在这个模型中,一个人选择的观点与其邻居的大多数观点相同的概率为$1 - q$,与之相反的概率为$q$。参数$q$称为模型的噪声参数。我们建立了一个网络的相互作用,$z$邻居选择的每个添加的网站在系统中,产生一个优先连接网络的度分布$k^{-λ}$,其中$λ\sim 3$。在这项工作中,$z$被称为生长参数。使用有限尺寸标度分析,我们表明,与磁化强度和磁化率的临界指数加起来的单位时,体积缩放使用,无论相互作用的网络的尺寸。利用Monte Carlo模拟,我们计算了无标度网络的临界噪声参数$q_c$作为$z$的函数,并得到了模型的相图。我们发现临界噪声是增长参数$z$的增函数,我们定义并验证了数字的酉关系$\upsilon$的临界指数计算$β/\barν$,$γ/\barν$和$1/\barν$的网络参数$z$的几个值。我们还获得了临界噪声和临界指数的两个和三个状态的多数表决模型的立方晶格网络,我们说明了应用的酉关系与体积缩放。

英文摘要:

We investigate the three-state majority-vote model with noise on scale-free and regular networks. In this model, an individual selects an opinion equal to the opinion of the majority of its neighbors with probability $1 - q$ and opposite to it with probability $q$. The parameter $q$ is called the noise parameter of the model. We build a network of interactions where $z$ neighbors are selected by each added site in the system, yielding a preferential attachment network with degree distribution $k^{-λ}$, where $λ\sim 3$. In this work, $z$ is called growth parameter. Using finite-size scaling analysis, we show that the critical exponents associated with the magnetization and magnetic susceptibility add up to unity when a volumetric scaling is used, regardless of the dimension of the network of interactions. Using Monte Carlo simulations, we calculate the critical noise parameter $q_c$ as a function of $z$ for the scale-free networks and obtain the phase diagram of the model. We find that the critical noise is an increasing function of the growth parameter $z$, and we define and verify numerically the unitary relation $\upsilon$ for the critical exponents by calculating $β/\barν$, $γ/\barν$ and $1/\barν$ for several values of the network parameter $z$. We also obtain the critical noise and the critical exponents for the two and three-state majority-vote model on cubic lattices networks where we illustrate the application of the unitary relation with a volumetric scaling.

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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