Physics – Quantum Physics
Scientific paper
2003-03-25
Journal of Optics B: Quantum and Semiclassical Optics 6 (3), S127 (2004); Erratum: Journal of Physics B: Atomic and Molecular
Physics
Quantum Physics
13 pages, 1 figure, RevTex, minor correction in Sec. III.1 (see erratum)
Scientific paper
10.1088/1464-4266/6/3/020
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.
Buhmann Stefan Yoshi
Dung Ho Trung
Welsch Dirk-Gunnar
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