Numerical study of realization and analysis of the densest packing structures of multi-component hard-sphere systems
| Project/Area Number |
25800214
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Mathematical physics/Fundamental condensed matter physics
|
|---|
| Research Institution | Toho University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2013-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
|---|
| Keywords | ガラス / 剛体球 / 多分散 / モンテカルロ法 / ランダム構造 / 最適化 |
|---|
| Outline of Final Research Achievements |
We studied multi-component hard-sphere systems to understand the material-composition dependence of the glass formation mechanism. We remark on the densest packing state, which is independent of the process of preparation but determined only by the material composition. The densest state is realized in a computer by full search of the macroscopic states. For this aim, we developed the method by unifying the Wang-Landau sampling and the replica exchange method. It is found that the search is accelerated by employing macroscopic state variables in addition to the particle density. In high density region, we find the Wang-Landau sampling does not converge. We avoided it by the extrapolation and analyze the reason in detail.
|
Report
(4 results)
Research Products
(5 results)
