Nonlinear rheology and the cooperative motion of particles at jamming/glass transitions
| Project/Area Number |
21740286
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Mathematical physics/Fundamental condensed matter physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
TAKAHIRO Hatano The University of Tokyo, 地震研究所, 特任助教 (20360414)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 粉体 / レオロジー / ジャミング転移 / 動的不均一 / ガラス転移 / ジャミング / 動的不均一性 / 臨界現象 |
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| Research Abstract |
Jamming transition is a rigidity transition of athermal particles, which closely resembles critical phenomena. However, there is no spontaneous symmetry-breaking and the random structure is frozen upon the transition. In this sense, it is believed that jamming transition is closely related glass transitions, although the quantitative correspondence is not clear so far. We perform a numerical simulation to clarify the nature of growing correlation in the particle motion at jamming transition. We identify power-law divergences of the correlation length and time and estimate the critical exponent.
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Report
(3 results)
Research Products
(61 results)
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[Presentation] 粉体物理・砂礫流動2010
Author(s)
波多野恭弘
Organizer
第二回微小重力地質学研究会
Place of Presentation
宇宙航空研究開発機構相模原キャンパス(相模原市)
Year and Date
2010-03-25
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