arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1204.3151cond-mat.stat-mechphysics.soc-ph
收藏

具有两种随机驱动的q选民模型中的相变

Phase transitions in the q-voter model with two types of stochastic driving

Piotr Nyczka, Katarzyna Sznajd-Weron, Jerzy Cislo

摘要:

本文研究了完全图上具有随机驱动的非线性$q$ -选民模型。我们调查两种类型的随机性,使用社会科学的语言,可以被解释为不同种类的不一致。从社会的角度来看,区分两种类型的不服从是非常重要的,即所谓的反服从和独立。大多数的作品表明,这些社会差异可能是完全无关的微观建模,使用统计物理学的工具,这两种类型的不一致性发挥所谓的“社会温度”的作用。在本文中,我们澄清了“社会温度”的概念,并表明,不同类型的“噪音”可能会导致质的不同的涌现属性。特别是,我们表明,在模型与反一致性的噪声的临界值与参数$q$增加,而在模型与独立性的噪声的临界值与$q$减少。此外,在具有反整合的模型中,相变对于任何$q$值都是连续的,而在具有独立性的模型中,相变对于$q \le 5$是连续的,对于$q>5$是不连续的。

英文摘要:

In this paper we study nonlinear $q$-voter model with stochastic driving on a complete graph. We investigate two types of stochasticity that, using the language of social sciences, can be interpreted as different kinds of nonconformity. From a social point of view, it is very important to distinguish between two types nonconformity, so called anti-conformity and independence. A majority of works suggests that these social differences may be completely irrelevant in terms of microscopic modeling that uses tools of statistical physics and that both types of nonconformity play the role of so called 'social temperature'. In this paper we clarify the concept of 'social temperature' and show that different type of 'noise' may lead to qualitatively different emergent properties. In particularly, we show that in the model with anti-conformity the critical value of noise increases with parameter $q$, whereas in the model with independence the critical value of noise decreases with the $q$. Moreover, in the model with anti-conformity the phase transition is continuous for any value of $q$, whereas in the model with independence the transition is continuous for $q \le 5$ and discontinuous for $q>5$.

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。

↑