2010 Fiscal Year Final Research Report
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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| 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 |
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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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