摘要翻译:
我们研究了Maggs和Rossetto发明的模拟带电粒子系统的蒙特卡罗方法的一些方面。它具有电荷运动时离散化电场局部更新的特点。给出了二维单组分等离子体的模拟结果。在较大的温度范围内,利用这种点阵方法可以非常有效地获得高精度的结果。该方法与全局方法的不同之处在于具有额外的自由度,这导致了如何产生更快的方法的问题。我们认为有效的取样依赖于电荷迁移率,并发现在中等温度下,对于独立板更新的低速率,迁移率接近最大值。我们给出了一个简单的模型来解释这种行为。我们还报告了均匀电场采样的作用使用该方法。
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英文标题:
《A study of a local Monte Carlo technique for simulating systems of
charged particles》
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作者:
P. A. McClarty
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最新提交年份:
2007
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分类信息:
一级分类:Physics 物理学
二级分类:Statistical Mechanics 统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
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一级分类:Physics 物理学
二级分类:Soft Condensed Matter 软凝聚态物质
分类描述:Membranes, polymers, liquid crystals, glasses, colloids, granular matter
膜,聚合物,液晶,玻璃,胶体,颗粒物质
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英文摘要:
We study some aspects of a Monte Carlo method invented by Maggs and Rossetto for simulating systems of charged particles. It has the feature that the discretized electric field is updated locally when charges move. Results of simulations of the two dimensional one-component plasma are presented. Highly accurate results can be obtained very efficiently using this lattice method over a large temperature range. The method differs from global methods in having additional degrees of freedom which leads to the question of how a faster method can result. We argue that efficient sampling depends on charge mobility and find that the mobility is close to maximum for a low rate of independent plaquette updates for intermediate temperatures. We present a simple model to account for this behavior. We also report on the role of uniform electric field sampling using this method.
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PDF链接:
https://arxiv.org/pdf/706.3858


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