期刊
PHYSICAL REVIEW A
卷 78, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.78.061602
关键词
association; binding energy; bound states; potassium compounds; resonant states
资金
- Centre for Quantum Engineering and Space-Time Research QUEST
- Deutsche Forschungsgemeinschaft [SFB 407]
We present a detailed analysis of the production efficiency of weakly bound heteronuclear (KRb)-K-40-Rb-87 Feshbach molecules using radio-frequency association in a harmonic trap. The efficiency was measured in a wide range of temperatures, binding energies, and radio frequencies. A comprehensive analytical model is presented, explaining the observed asymmetric spectra and achieving good quantitative agreement with the measured production rates. This model provides a deep understanding of the molecule association process and paves the way for future experiments which rely on Feshbach molecules, e.g., for the production of deeply bound molecules.
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