Non-Gaussian statistics for the motion of self-propelled Janus particles: Experiment versus theory

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	Non-Gaussian statistics for the motion of self-propelled Janus particles: Experiment versus theory
	Zheng X(郑旭); ten Hagen B; Kaiser A; Wu ML; Cui HH; Silber-Li ZH(李战华); Lowen H; Zheng, X (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
发表期刊	PHYSICAL REVIEW E
	2013-09-18
卷号	88 期号:3 页码:032304/1-032304/11
ISSN	1539-3755
摘要	Spherical Janus particles are one of the most prominent examples for active Brownian objects. Here, we study the diffusiophoretic motion of such microswimmers in experiment and in theory. Three stages are found: simple Brownian motion at short times, superdiffusion at intermediate times, and finally diffusive behavior again at long times. These three regimes observed in the experiments are compared with a theoretical model for the Langevin dynamics of self-propelled particles with coupled translational and rotational motion. Besides the mean square displacement also higher displacement moments are addressed. In particular, theoretical predictions regarding the non-Gaussian behavior of self-propelled particles are verified in the experiments. Furthermore, the full displacement probability distribution is analyzed, where in agreement with Brownian dynamics simulations either an extremely broadened peak or a pronounced double-peak structure is found, depending on the experimental conditions.
关键词	Janus Particles Self-propulsion Brownian Motion Non-gaussian Behavior Microfluidic
学科领域	物理力学
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000324541800006
项目资助者	National Natural Science Foundation of China [11272322, 11202219, 21005058]; ERC Advanced Grant INTERCOCOS [267499]; DFG [SFB TR6]
课题组名称	LNM微纳米流体力学
论文分区	一类
引用统计	被引频次：103[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/47495
专题	非线性力学国家重点实验室
通讯作者	Zheng, X (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Zheng X,ten Hagen B,Kaiser A,et al. Non-Gaussian statistics for the motion of self-propelled Janus particles: Experiment versus theory[J]. PHYSICAL REVIEW E,2013,88,3,:032304/1-032304/11.
APA	Zheng X.,ten Hagen B.,Kaiser A.,Wu ML.,Cui HH.,...&Zheng, X .(2013).Non-Gaussian statistics for the motion of self-propelled Janus particles: Experiment versus theory.PHYSICAL REVIEW E,88(3),032304/1-032304/11.
MLA	Zheng X,et al."Non-Gaussian statistics for the motion of self-propelled Janus particles: Experiment versus theory".PHYSICAL REVIEW E 88.3(2013):032304/1-032304/11.

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