计算物理 ›› 2009, Vol. 26 ›› Issue (6): 925-930.

• 论文 • 上一篇    下一篇

高斯噪声诱导二元混合物/粒子系统有序结构的形成

冯文强1,2, 诸跃进2   

  1. 1. 辽宁科技大学理学院, 辽宁 鞍山 114044;
    2. 宁波大学物理系, 浙江 宁波 315211
  • 收稿日期:2008-06-27 修回日期:2009-01-16 出版日期:2009-11-25 发布日期:2009-11-25
  • 作者简介:冯文强(1980-),男,辽宁鞍山,硕士,从事聚合物相分离理论研究.
  • 基金资助:
    国家自然科学基金(批准号:10774079);宁波市自然科学基金(批准号:2006A610064)资助项目

Gaussian Fluctuation-driven Ordered Structures of Binary Mixtures with Particles

FENG Wenqiang1,2, ZHU Yuejin2   

  1. 1. Science Department, Liaoning University of Science and Technology, Anshan 114044, China;
    2. Physics Department, Ningbo University, Ningbo 315211, China
  • Received:2008-06-27 Revised:2009-01-16 Online:2009-11-25 Published:2009-11-25

摘要: 采用蒙特卡罗方法研究高斯噪声场对添加硬球粒子的二元混合物系统自组装的驱动作用.发现硬球粒子与组分之间的相互作用决定硬球粒子在畴中存在的区域.当硬球粒子与组分之间的相互作用较大,硬球粒子浓度n≤0.05时,对于足够强的高斯噪声场,存在一个最佳噪声作用概率区域(p=0.005~0.02),其间高斯噪声已完全消除硬球粒子的钉扎效应,使体系快速生长并形成取向性很好的条状畴结构.

关键词: 高斯噪声场, 二元混合物, 有序结构

Abstract: We study orderd structures of binary mixtures with mobile particles under Gaussian noise with Monte Carlo method. It shows that interaction between particle and component decides position of particles and motion of particle can break up isotropy of the system. As this interaction is large, tilted strip pattern formation is observed with a particular external C, aussian noise and particle concentration. Furthermore, an optimal noise frequency region(p=0.005~0.02)exists, in which the system quickly forms high-oriented tilted strip pattern.

Key words: Gaussian noise, binary mixtures, ordered structure

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