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Self-adaptive behavior of nunchakus-like tracer induced by active Brownian particles |
| Yi-Qi Xia(夏益祺)1,2,†, Guo-Qiang Feng(冯国强)2, and Zhuang-Lin Shen(谌庄琳)2,3,‡ |
1 Department of Physics and Electronic Engineering, Yancheng Teachers University, Yancheng 224007, China;
2 Center for Soft Condensed Matter Physics&Interdisciplinary Research, School of Physical Science and Technology, Soochow University, Suzhou 215006, China;
3 Department of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China |
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Abstract We design a nunchakus-like tracer and investigate its self-adaptive behavior in an active Brownian particle (ABP) bath via systematically tuning the self-propelled capability and density of ABPs. Specifically, the nunchakus-like tracer will have a stable wedge-like shape in the ABP bath when the self-propelled force is high enough. We analyze the angle between the two arms of the tracer and the velocity of the joint point of the tracer. The angle exhibits a non-monotonic phenomenon as a function of active force. However, it increases with density of ABPs increasing monotonically. A simple linear relationship between the velocity and the self-propelled force is found under the highly active force. In other words, the joint points of the tracer diffuse and the super-diffusive behavior can make the relation between the self-propelled force and the density of ABPs persist longer. In addition, we find that the tracer can flip at high density of ABPs. Our results also suggest the new self-adaptive model research of the transport properties in a non-equilibrium medium.
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Received: 22 July 2021
Revised: 05 September 2021
Accepted manuscript online: 24 September 2021
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PACS:
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02.70.Ns
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(Molecular dynamics and particle methods)
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64.70.qj
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(Dynamics and criticality)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11804085 and 21674078), the Natural Science Foundation of the Jiangsu Provincial Higher Education Institutions, China (Grant No. 21KJB140023), and the Foundation of Jiangsu Provincial Innovation and Entrepreneurship Doctor, China (Grant No. JSSCBS20211147). |
Corresponding Authors:
Yi-Qi Xia, Zhuang-Lin Shen
E-mail: xiayq@yctu.edu.cn;shenzl@szu.edu.cn
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Cite this article:
Yi-Qi Xia(夏益祺), Guo-Qiang Feng(冯国强), and Zhuang-Lin Shen(谌庄琳) Self-adaptive behavior of nunchakus-like tracer induced by active Brownian particles 2022 Chin. Phys. B 31 040204
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