The equation of motion for the trajectory of a circling particle with an overdamped circle center

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	The equation of motion for the trajectory of a circling particle with an overdamped circle center
	Si, TY
刊名	PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
	2012
卷号	391 期号:11 页码:3054-3060
关键词	ESCHERICHIA-COLI SPERM CELLS CHEMOTAXIS BACTERIA MOTILITY
ISSN号	0378-4371
通讯作者	Si, TY (reprint author), 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.
学科主题	Physics
收录类别	SCI
原文出处	http://dx.doi.org/10.1016/j.physa.2012.01.035
语种	英语
WOS记录号	WOS:000302423700004
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15092]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	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.
APA	Si, TY.(2012).The equation of motion for the trajectory of a circling particle with an overdamped circle center.PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,391(11),3054-3060.
MLA	Si, TY."The equation of motion for the trajectory of a circling particle with an overdamped circle center".PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS 391.11(2012):3054-3060.