标题： 介质无序对板状几何结构中范德华相互作用的影响 显示英文标题

标题： The effects of dielectric disorder on van der Waals interactions in slab geometries

摘要： 我们研究由平面平行层组成的两个厚板之间在中间均匀介电材料中的热卡西米尔效应。 发现长距离的有效相互作用是自平均的，其值由相应随机介质的有效介电张量之间的相互作用给出。 在短距离处的行为变得随机（样本依赖），并由穿过均匀板的介电常数的局部值主导。 通过使用弱无序的微扰理论以及对多个介电函数具有对数正态分布的系统的大量数值模拟，将这些结果扩展到中间板间距的区域。 显示英文摘要

摘要： We study the thermal Casimir effect between two thick slabs composed of plane-parallel layers of random dielectric materials interacting across an intervening homogeneous dielectric. It is found that the effective interaction at long distances is self averaging and its value is given by a that between non-random media with the effective dielectric tensor of the corresponding random media. The behavior at short distances becomes random (sample dependent) and is dominated by the local values of the dielectric constants proximal to each other across the homogeneous slab. These results are extended to the regime of intermediate slab separations by using perturbation theory for weak disorder and also by extensive numerical simulations for a number of systems where the dielectric function has a log-normal distribution.