Universal scaling laws for dispersion interactions.
Universal scaling laws for dispersion interactions.
复制标题
DOI：
10.1103/physrevlett.104.070404
复制
发表时间：
2010-02
影响因子：
8.6
通讯作者：
S. Buhmann;S. Scheel;J. Babington
中科院分区：
文献类型：
--
作者：
S. Buhmann;S. Scheel;J. Babington
我们研究非常一般条件下色散势和力的缩放行为。我们证明，按因子 a 重新调整任意几何排列，长距离极限中的原子-原子和原子-体势能分别改变 1/a{7} 和 1/a{4} 因子，以及每单位面积的卡西米尔力 1/a{4}。在短距离范围内，电场体和磁性体会导致不同的缩放行为。作为应用，我们提出了两个原子体势的标度函数，并显示了板辅助双原子势的等势线。
We study the scaling behavior of dispersion potentials and forces under very general conditions. We prove that a rescaling of an arbitrary geometric arrangement by a factor a changes the atom-atom and atom-body potentials in the long-distance limit by factors 1/a{7} and 1/a{4}, respectively, and the Casimir force per unit area by 1/a{4}. In the short-distance regime, electric and magnetic bodies lead to different scaling behavior. As applications, we present scaling functions for two atom-body potentials and display the equipotential lines of a plate-assisted two-atom potential.