Feshbach resonances in ultracold 39K

被引：151

作者：

D'Errico, Chiara

Zaccanti, Matteo

Fattori, Marco

Roati, Giacomo

Inguscio, Massimo

Modugno, Giovanni

Simoni, Andrea

机构：

[1] Univ Florence, LENS, I-50019 Sesto Fiorentino, Italy

[2] Univ Florence, Dipartimento Fis, I-50019 Sesto Fiorentino, Italy

[3] Ist Nazl Fis Nucl, I-50019 Sesto Fiorentino, Italy

[4] Enrico Fermi Inst, Museo Storico Fis, I-00184 Rome, Italy

[5] Enrico Fermi Inst, Ctr Studi & Ric, I-00184 Rome, Italy

[6] CNR INFM, I-50019 Sesto Fiorentino, Italy

[7] CNRS, Lab Phys Atomes Lasers Mol & Surfaces, UMR 6627, F-35042 Rennes, France

[8] Univ Rennes 1, F-35042 Rennes, France

来源：

NEW JOURNAL OF PHYSICS | 2007年 / 9卷

关键词：

D O I：

10.1088/1367-2630/9/7/223

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discover several magnetic Feshbach resonances in collisions of ultracold K-39 atoms, by studying atom losses and molecule formation. Accurate determination of the magnetic-field resonance locations allows us to optimize a quantum collision model for potassium isotopes. We employ the model to predict the magnetic-field dependence of scattering lengths and of near-threshold molecular levels. Our findings will be useful to plan future experiments on ultracold K-39 atoms and molecules.

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页数：13

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