Analysis of self-averaging properties in the transport of particles through random media.
Analysis of self-averaging properties in the transport of particles through random media.
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分析粒子通过随机介质传输的自平均特性。
DOI：
10.1103/physreve.51.r1637
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Pesquera
中科院分区：
文献类型：
--
作者：
López;Rodríguez;Pesquera
我们研究了粒子在随机介质中输运的自平均性质。我们严格地表明，在亚扩散异常制度的传输系数不是自平均量。这些量是在有向随机游动的情况下精确计算的。在一般对称随机游动的情况下，围绕有效介质近似（EMA）进行摄动分析。
We investigate self-averaging properties in the transport of particles through random media. We show rigorously that in the subdiffusive anomalous regime transport coefficients are not self--averaging quantities. These quantities are exactly calculated in the case of directed random walks. In the case of general symmetric random walks a perturbative analysis around the Effective Medium Approximation (EMA) is performed.