吸收体和色散体附近原子系统的范德华能
The van der Waals energy of atomic systems near absorbing and dispersing bodies
摘要：
在因果介质中的宏观量子电动力学框架下，研究了原子系统与任意排列的色散和吸收介质（包括金属）之间的范德华相互作用.结果表明，最小耦合方案和多极耦合方案导致本质上相同的范德华势的公式。作为应用，导出了球存在时原子的vdW势。给出了长距离（延迟）和短距离（非延迟）极限的封闭表达式，并讨论了材料吸收的影响。
英文摘要：
Within the frame of macroscopic quantum electrodynamics in causal media, the van der Waals interaction between an atomic system and an arbitrary arrangement of dispersing and absorbing dielectric bodies including metals is studied. It is shown that the minimal-coupling scheme and the multipolar-coupling scheme lead to essentially the same formula for the van der Waals potential. As an application, the vdW potential of an atom in the presence of a sphere is derived. Closed expressions for the long-distance (retardation) and short-distance (non-retardation) limits are given, and the effect of material absorption is discussed.
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