揭示Ziff-Gulari-Barshad模型隐藏的弱普遍性。

IF 2.4 3区 物理与天体物理 Q1 Mathematics
Henrique A Fernandes, Roberto da Silva
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引用次数: 0

摘要

在这项工作中,我们重新审视了Ziff-Gullari-Barshad (ZGB)模型,以研究一氧化碳(CO)分子从催化表面解吸时的临界行为。一些作者指出,当这种脱附发生时,标准模型的一阶相变消失,在很小的脱附速率值上存在一个类似伊辛的临界点。然而,我们的随时间蒙特卡罗模拟显示,存在一条临界线,而不是一个单一的临界点,它似乎包含了多个普适性类,通过伊辛和三态波茨点,并为四态波茨点提供了合理的证据,导致一条前所未有的弱普适性临界线。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Unveiling the hidden weak universality of the Ziff-Gulari-Barshad model.

In this work, we revisited the Ziff-Gullari-Barshad (ZGB) model in order to investigate its critical behavior when carbon monoxide (CO) molecules are allowed to desorb from the catalytic surface. As shown by several authors, when this kind of desorption takes place, the first-order phase transition of the standard model disappears, and an Ising-like critical point is found for a very small value of the desorption rate. However, our time-dependent Monte Carlo simulations reveal that, instead of a single critical point, there exists a critical line that appears to encompass multiple universality classes, passing through the Ising and three-state Potts points, as well as providing reasonable evidence for the four-state Potts point, resulting in an unprecedented critical line exhibiting weak universality.

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来源期刊
Physical review. E
Physical review. E 物理-物理:流体与等离子体
CiteScore
4.60
自引率
16.70%
发文量
0
审稿时长
3.3 months
期刊介绍: Physical Review E (PRE), broad and interdisciplinary in scope, focuses on collective phenomena of many-body systems, with statistical physics and nonlinear dynamics as the central themes of the journal. Physical Review E publishes recent developments in biological and soft matter physics including granular materials, colloids, complex fluids, liquid crystals, and polymers. The journal covers fluid dynamics and plasma physics and includes sections on computational and interdisciplinary physics, for example, complex networks.
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