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arXiv 1104.3445math-phmath.MP
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简单排除过程中的当前储层

Current reservoirs in the simple exclusion process

Anna De Masi, Errico Presutti, Dimitrios Tsagkarogiannis, Maria Eulalia Vares

摘要:

本文考虑了$[-N,N]$区间上的对称简单排斥过程,分别在$(N-K,N]$,$K>0$和$[-N,-N+K)$上具有额外的生灭过程.排除速度加快了一个因子$N^2$,出生和死亡加快了一个因子$N$。假设传播的混乱(一个属性证明了在一个配套文件“截断相关性的搅拌过程与出生和死亡”),我们证明了收敛在极限$N\to \infty$的线性热方程的边界上的Dirichlet条件,但边界条件是未知的先验,他们是通过求解非线性方程。该模型模拟了在边界处具有流库的质量输运,并证明了傅立叶定律的成立。

英文摘要:

We consider the symmetric simple exclusion process in the interval $[-N,N]$ with additional birth and death processes respectively on $(N-K,N]$, $K>0$, and $[-N,-N+K)$. The exclusion is speeded up by a factor $N^2$, births and deaths by a factor $N$. Assuming propagation of chaos (a property proved in a companion paper "Truncated correlations in the stirring process with births and deaths") we prove convergence in the limit $N\to \infty$ to the linear heat equation with Dirichlet condition on the boundaries; the boundary conditions however are not known a priori, they are obtained by solving a non linear equation. The model simulates mass transport with current reservoirs at the boundaries and the Fourier law is proved to hold.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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