globalchange  > 气候变化与战略
DOI: 10.1073/pnas.2000061117
论文题名:
Emergence of self-organized multivortex states in flocks of active rollers
作者: Han K.; Kokot G.; Tovkach O.; Glatz A.; Aranson I.S.; Snezhko A.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:18
起始页码: 9706
结束页码: 9711
语种: 英语
英文关键词: Active matter ; Collective behavior ; Multivortex ; Self-organization
Scopus关键词: article ; computer model ; rotation
英文摘要: Active matter, both synthetic and biological, demonstrates complex spatiotemporal self-organization and the emergence of collective behavior. A coherent rotational motion, the vortex phase, is of great interest because of its ability to orchestrate well-organized motion of self-propelled particles over large distances. However, its generation without geometrical confinement has been a challenge. Here, we show by experiments and computational modeling that concentrated magnetic rollers self-organize into multivortex states in an unconfined environment. We find that the neighboring vortices more likely occur with the opposite sense of rotation. Our studies provide insights into the mechanism for the emergence of coherent collective motion on the macroscale from the coupling between microscale rotation and translation of individual active elements. These results may stimulate design strategies for self-assembled dynamic materials and microrobotics. © 2020 National Academy of Sciences. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163469
Appears in Collections:气候变化与战略

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作者单位: Han, K., Material Science Division, Argonne National Laboratory, Lemont, IL 60439, United States; Kokot, G., Material Science Division, Argonne National Laboratory, Lemont, IL 60439, United States, Department of Engineering Science and Applied Mathematics, Northwestern University, Evanston, IL 60201, United States; Tovkach, O., Department of Biomedical Engineering, Pennsylvania State University, University Park, PA 16802, United States; Glatz, A., Material Science Division, Argonne National Laboratory, Lemont, IL 60439, United States, Department of Physics, Northern Illinois University, DeKalb, IL 60115, United States; Aranson, I.S., Department of Biomedical Engineering, Pennsylvania State University, University Park, PA 16802, United States, Department of Chemistry, Pennsylvania State University, University Park, PA 16802, United States, Department of Mathematics, Pennsylvania State University, University Park, PA 16802, United States; Snezhko, A., Material Science Division, Argonne National Laboratory, Lemont, IL 60439, United States

Recommended Citation:
Han K.,Kokot G.,Tovkach O.,et al. Emergence of self-organized multivortex states in flocks of active rollers[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(18)
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