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题名: The equation of motion for the trajectory of a circling particle with an overdamped circle center
作者: Si, TY
刊名: PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
出版日期: 2012
卷号: 391, 期号:11, 页码:3054-3060
关键词: ESCHERICHIA-COLI ;  SPERM CELLS ;  CHEMOTAXIS ;  BACTERIA ;  MOTILITY
学科分类: Physics
通讯作者: Si, TY (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: Inspired by biological microorganisms swimming in circles in liquid with low Reynolds number, I developed the dynamic theory for computing the helical trajectory of a circling particle with an overdamped circle center. The equation of motion for the circling particle is a hybrid equation of deterministic terms and stochastic terms. Observing the motion of a swimming microorganism, I found the strength of stochastic fluctuations should be much smaller than that governs deterministic dynamics. This dynamic theory predicts a nonlinear transverse motion perpendicular to the direction of external force. Both the living microorganism and artificial circling particle are applicable for an experimental check of this prediction. For the convenience of easy theoretical research, I further derived the probability conservation equations based on this dynamic theory both in two-dimensional and three-dimensional space. (C) 2012 Elsevier B.V. All rights reserved.
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000302423700004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15092
Appears in Collections:理论物理所2012年知识产出_期刊论文

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Recommended Citation:
Si, TY. The equation of motion for the trajectory of a circling particle with an overdamped circle center[J]. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,2012,391(11):3054-3060.
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