A fluctuation-response relation of many Brownian particles under non-equilibrium conditions
| dc.creator | Nakamura, Takenobu | |
| dc.creator | Sasa, Shin-ichi | |
| dc.date | 2007-09-12 | |
| dc.date | 2007-09-13 | |
| dc.date.accessioned | 2026-07-07T12:47:22Z | |
| dc.date.available | 2026-07-07T12:47:22Z | |
| dc.description | We study many interacting Brownian particles under a tilted periodic potential. We numerically measure the linear response coefficient of the density field by applying a slowly varying potential transversal to the tilted direction. In equilibrium cases, the linear response coefficient is related to the intensity of density fluctuations in a universal manner, which is called a fluctuation-response relation. We then report numerical evidence that this relation holds even in non-equilibrium cases. This result suggests that Einstein's formula on density fluctuations can be extended to driven diffusive systems when the slowly varying potential is applied in a direction transversal to the driving force. | |
| dc.description | 5 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/0709.1843 | |
| dc.identifier | http://arxiv.org/abs/0709.1843 | |
| dc.identifier | Phys. Rev. E 77, 021108 (2008) | |
| dc.identifier | doi:10.1103/PhysRevE.77.021108 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/221699 | |
| dc.subject | Statistical Mechanics | |
| dc.subject | Soft Condensed Matter | |
| dc.title | A fluctuation-response relation of many Brownian particles under non-equilibrium conditions | |
| dc.type | text |