Exact joint density-current probability function for the asymmetric exclusion process
统计力学
2009-11-10 v1
摘要
We study the asymmetric exclusion process with open boundaries and derive the exact form of the joint probability function for the occupation number and the current through the system. We further consider the thermodynamic limit, showing that the resulting distribution is non-Gaussian and that the density fluctuations have a discontinuity at the continuous phase transition, while the current fluctuations are continuous. The derivations are performed by using the standard operator algebraic approach, and by the introduction of new operators satisfying a modified version of the original algebra.
引用
@article{arxiv.cond-mat/0403079,
title = {Exact joint density-current probability function for the asymmetric exclusion process},
author = {Martin Depken and Robin Stinchcombe},
journal= {arXiv preprint arXiv:cond-mat/0403079},
year = {2009}
}
备注
4 pages, 3 figures