期刊
JOURNAL OF STATISTICAL PHYSICS
卷 131, 期 5, 页码 821-841出版社
SPRINGER
DOI: 10.1007/s10955-008-9518-y
关键词
exclusion processes; diffusive systems; partial currents; fluctuation theorem; vortices
资金
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0802120] Funding Source: National Science Foundation
We show that the fluctuations of the partial current in two dimensional diffusive systems are dominated by vortices leading to a different scaling from the one predicted by the hydrodynamic large deviation theory. This is supported by exact computations of the variance of partial current fluctuations for the symmetric simple exclusion process on general graphs. On a two-dimensional torus, our exact expressions are compared to the results of numerical simulations. They confirm the logarithmic dependence on the system size of the fluctuations of the partial flux. The impact of the vortices on the validity of the fluctuation relation for partial currents is also discussed in an Appendix.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据