Heat conduction and diffusion of hard disks in a narrow channel
| dc.creator | Lipowski, Adam | |
| dc.creator | Lipowska, Dorota | |
| dc.date | 2006-10-11 | |
| dc.date | 2007-05-20 | |
| dc.date.accessioned | 2026-07-07T08:05:05Z | |
| dc.date.available | 2026-07-07T08:05:05Z | |
| dc.description | Using molecular dynamics we study heat conduction and diffusion of hard disks in one dimensional narrow channels. When collisions preserve momentum the heat conduction $κ$ diverges with the number of disks $N$ as $κ\sim N^α$ $(α\approx 1/3)$. Such a behaviour is seen both when the ordering of disks is fixed ('pen-case' model), and when they can exchange their positions. Momentum conservation results also in sound-wave effects that enhance diffusive behaviour and on an intermediate time scale (that diverges in the thermodynamic limit) normal diffusion takes place even in the 'pen-case' model. When collisions do not preserve momentum, $κ$ remains finite and sound-wave effects are absent. | |
| dc.description | 4 pages, accepted in Phys.Rev.E | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0610309 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0610309 | |
| dc.identifier | Phys. Rev. E 75, 052201 (2007) | |
| dc.identifier | doi:10.1103/PhysRevE.75.052201 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/130167 | |
| dc.subject | Statistical Mechanics | |
| dc.title | Heat conduction and diffusion of hard disks in a narrow channel | |
| dc.type | text |