Atom-atom scattering under cylindrical harmonic confinement: Numerical and analytic studies of the confinement induced resonance

被引：327

作者：

Bergeman, T ^{[1
]}

Moore, MG

Olshanii, M

机构：

[1] Harvard Smithsonian Ctr Astrophys, Inst Theoret Atom & Mol Phys, Cambridge, MA 02138 USA

[2] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

[3] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA

[4] Univ So Calif, Dept Phys, Los Angeles, CA 90089 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 16期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.91.163201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It was recently predicted [Phys. Rev. Lett. 81, 938 (1998)10.1103/PhysRevLett.81.938] that atom-atom scattering under transverse harmonic confinement is subject to a "confinement-induced resonance" where the effective one-dimensional coupling strength diverges at a particular ratio of the confinement and scattering lengths. As the initial prediction made use of the zero-range pseudopotential approximation, we now report numerical results for finite-range interaction potentials that corroborate this resonance. In addition, we now present a physical interpretation of this effect as a novel type of Feshbach resonance in which the transverse modes of the confining potential assume the roles of "open" and "closed" scattering channels.

引用

页数：4

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