Observation of Broad d-Wave Feshbach Resonances with a Triplet Structure

被引：42

作者：

Cui, Yue ^{[1
]}

Shen, Chuyang ^{[1
]}

Deng, Min ^{[1
]}

Dong, Shen ^{[1
]}

Chen, Cheng ^{[1
]}

Lu, Rong ^{[1
,2
]}

Gao, Bo ^{[3
]}

Tey, Meng Khoon ^{[1
,2
]}

You, Li ^{[1
,2
]}

机构：

[1] Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China

[2] Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China

[3] Univ Toledo, Dept Phys & Astron, Mailstop 111, Toledo, OH 43606 USA

来源：

PHYSICAL REVIEW LETTERS | 2017年 / 119卷 / 20期

基金：

美国国家科学基金会;

关键词：

CONDENSATION; ATOMS;

D O I：

10.1103/PhysRevLett.119.203402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

High partial-wave (l >= 2) Feshbach resonance (FR) in an ultracold mixture of Rb-85-Rb-87 atoms is investigated experimentally aided by a partial-wave insensitive analytic multichannel quantum-defect theory. Two "broad" resonances from coupling between d waves in both the open and closed channels are observed and characterized. One of them shows a fully resolved triplet structure with a splitting ratio well explained by the perturbation to the closed channel due to interatomic spin-spin interaction. These tunable "broad" d-wave resonances, especially the one in the lowest-energy open channel, could find important applications in simulating d-wave coupling dominated many-body systems. In addition, we find that there is generally a time and temperature requirement, associated with tunneling through the angular momentum barrier, to establish and observe resonant coupling in nonzero partial waves.

引用

页数：5

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