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サイトウ クニヤス
Kuniyasu Saitoh
齊藤 国靖 所属 京都産業大学 理学部 物理科学科 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2020/02/03 |
| 形態種別 | その他 |
| 標題 | Universal Relaxation Dynamics of Sphere Packings below Jamming |
| 執筆形態 | その他 |
| 掲載誌名 | Physical Review Letters |
| 出版社・発行元 | American Physical Society ({APS}) |
| 巻・号・頁 | 124(5) |
| 著者・共著者 | Atsushi Ikeda,Takeshi Kawasaki,Ludovic Berthier,Kuniyasu Saitoh,Takahiro Hatano |
| 概要 | We show that non-Brownian suspensions of repulsive spheres below jamming<br />
display a slow relaxational dynamics with a characteristic time scale that<br /> diverges at jamming. This slow time scale is fully encoded in the structure of<br /> the unjammed packing and can be readily measured via the vibrational density of<br /> states. We show that the corresponding dynamic critical exponent is the same<br /> for randomly generated and sheared packings. Our results show that a wide<br /> variety of physical situations, from suspension rheology to algorithmic studies<br /> of the jamming transition are controlled by a unique diverging timescale, with<br /> a universal critical exponent. |
| DOI | 10.1103/physrevlett.124.058001 |
| ISSN | 1079-7114/1079-7114 |
| arXiv ID | arXiv:1904.07359 |
| Put Code(ORCID) | 99119198 |
| PermalinkURL | http://arxiv.org/abs/1904.07359v2 |