Universal Scaling Laws for Dispersion Interactions

被引：12

作者：

Buhmann, Stefan Yoshi ^{[1
]}

Scheel, Stefan ^{[1
]}

Babington, James ^{[2
,3
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2AZ, England

[2] Univ Grenoble 1, Lab Phys & Modelisat Milieux Condenses, F-38042 Grenoble, France

[3] CNRS, F-38042 Grenoble, France

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 07期

基金：

英国工程与自然科学研究理事会;

关键词：

DER-WAALS INTERACTION; CASIMIR FORCE; BODIES; ATOM;

D O I：

10.1103/PhysRevLett.104.070404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：4

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