Atom symmetry break and metastable level coupling in rare gas atom-surface van der Waals interaction

被引：37

作者：

Boustimi, M ^{[1
]}

de Lesegno, BV ^{[1
]}

Baudon, J ^{[1
]}

Robert, J ^{[1
]}

Ducloy, M ^{[1
]}

机构：

[1] Univ Paris 13, UMR CNRS 7538, Phys Lasers Lab, F-93430 Villetaneuse, France

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.86.2766

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

van der Waals interactions between an atom and a planar surface exhibit a quadrupolar component in D-z(2)-D-2/3 (D, atomic dipole; (z) over cap, normal to surface). This coupling is responsible for an atom symmetry break, mixing levels of the same parity such as metastable P-3(0), P-3(2) levels of rare gas atoms. The strongly exoenergic P-3(0)-P-3(2) transition in Ar and Kr is observed by a time-of-flight technique using as a surface the edge of a copper slit. The results confirm the predicted strong peaking of the angular distribution of inelastically scattered atoms and give a good estimate of the transition probability.

引用

页码：2766 / 2769

页数：4

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