تقرير
Soft Sphere Packings at Finite Pressure but Unstable to Shear
| العنوان: | Soft Sphere Packings at Finite Pressure but Unstable to Shear |
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| المؤلفون: | Dagois-Bohy, S., Tighe, B. P., Simon, J., Henkes, S., van Hecke, M. |
| المصدر: | PRL 109, 095703 (2012) |
| سنة النشر: | 2012 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Soft Condensed Matter |
| الوصف: | When are athermal soft sphere packings jammed ? Any experimentally relevant definition must at the very least require a jammed packing to resist shear. We demonstrate that widely used (numerical) protocols in which particles are compressed together, can and do produce packings which are unstable to shear - and that the probability of generating such packings reaches one near jamming. We introduce a new protocol that, by allowing the system to explore different box shapes as it equilibrates, generates truly jammed packings with strictly positive shear moduli G. For these packings, the scaling of the average of G is consistent with earlier results, while the probability distribution P(G) exhibits novel and rich scaling Comment: 5 pages, 6 figures. Resubmitted to Physical Review Letters after a few changes |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.109.095703 |
| URL الوصول: | http://arxiv.org/abs/1203.3364 |
| رقم الأكسشن: | edsarx.1203.3364 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.109.095703 |
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