2012 Fiscal Year Final Research Report
Collective motion of self-propelled particles
| Project/Area Number |
23740299
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Mathematical physics/Fundamental condensed matter physics
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| Research Institution | Meiji University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
中田 聡 広島大学 (50217741)
西森 拓 広島大学 (50237749)
粟津 暁紀 広島大学 (00448234)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 自律運動 / 集団運動 / 非線形科学 / 自己組織化 |
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| Research Abstract |
Collective motion is one of the hot topic in an interdisciplinary research field. Collection of camphor boats exhibits spacio-temporal pattern on a ring-shaped water channel. To clarify the mechanism in detail, we measured the basic parameters such as supply and sublimation rate of camphor molecules. Based on our measurement, we estimated the relaxation distance of camphor surface concentration behind the boat. This distance tells us the interaction between the boats. Next, we observed collective behavior of camphor disks on circular water surface, in order to discover novel collective motion. As the result, we successfully found intermittent motion of camphor disks with high number density. This behavior is novel collective motion induced by interaction between the disks.
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