Multiplet structure of Feshbach resonances in nonzero partial waves

被引：208

作者：

Ticknor, C ^{[1
]}

Regal, CA

Jin, DS

Bohn, JL

机构：

[1] Univ Colorado, Natl Inst Stand & Technol, Joint Inst Lab Astrophys, Boulder, CO 80309 USA

[2] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

来源：

PHYSICAL REVIEW A | 2004年 / 69卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevA.69.042712

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a unique feature of magnetic-field Feshbach resonances in which atoms collide with nonzero orbital angular momentum. p-wave (l=1) Feshbach resonances are split into two components depending on the magnitude of the resonant state's projection of orbital angular momentum onto the field axis. This splitting is due to the magnetic dipole-dipole interaction between the atoms and it offers a means to tune anisotropic interactions of an ultracold gas of atoms. Furthermore this splitting in the p-wave Feshbach resonance has been experimentally observed and is reported. A parametrization of the p-wave resonance in terms of an effective-range expansion is given.

引用

页码：042712 / 1

页数：6

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