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How to simulate patchy particles

机译:如何模拟斑块粒子

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摘要

Patchy particles is the name given to a large class of systems of mesoscopic particles characterized by a repulsive core and a discrete number of short-range and highly directional interaction sites. Numerical simulations have contributed significantly to our understanding of the behaviour of patchy particles, but, although simple in principle, advanced simulation techniques are often required to sample the low temperatures and long time-scales associated with their self-assembly behaviour. In this work we review the most popular simulation techniques that have been used to study patchy particles, with a special focus on Monte Carlo methods. We cover many of the tools required to simulate patchy systems, from interaction potentials to biased moves, cluster moves, and free-energy methods. The review is complemented by an educationally oriented Monte Carlo computer code that implements all the techniques described in the text to simulate a well-known tetrahedral patchy particle model.
机译:斑块颗粒是给予大类介面颗粒系统的名称,其特征在于一种排斥核心和离散数的短范围和高度定向相互作用位点。 数值模拟对于我们对斑块颗粒的行为的理解作出明显贡献,但是,尽管原则上简单,通常需要先进的仿真技术来对与其自组装行为相关的低温和长时间尺度来采样。 在这项工作中,我们审查了最受欢迎的仿真技术,这些技术已被用于研究斑块颗粒,特别关注蒙特卡罗方法。 我们涵盖了模拟斑块系统所需的许多工具,从偏置移动,群集移动和自由能方法。 审查是由教育导向的蒙特卡罗电脑代码补充,该计算机代码实现了文本中描述的所有技术,以模拟众所周知的四面体斑块粒子模型。

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