Radio-frequency spectroscopy of weakly bound molecules in ultracold Fermi gasRadio-frequency spectroscopy of weakly bound molecules in ultracold Fermi gasRadio-frequency spectroscopy of weakly bound molecules in ultracold Fermi gas

We create weakly bound Feshbach molecules in ultracold Fermi gas 4~K by sweeping a magnetic field across a broad Feshbach resonance point 202.2 G with a rate of 20 ms/G and perform the dissociation process using radio-frequency （RF） technology. From RF spectroscopy, we obtain the binding energy of t...

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Bibliographic Details
Published in中国物理B：英文版 no. 1; pp. 211 - 214
Main Author 黄良辉 王鹏军 付正坤 张靖
Format Journal Article
LanguageEnglish
Published 2014
Subjects
bound
Feshbach
length
molecules
resonance
scattering
weakly
Online AccessGet full text
ISSN1674-1056
2058-3834

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Summary:We create weakly bound Feshbach molecules in ultracold Fermi gas 4~K by sweeping a magnetic field across a broad Feshbach resonance point 202.2 G with a rate of 20 ms/G and perform the dissociation process using radio-frequency （RF） technology. From RF spectroscopy, we obtain the binding energy of the weakly bound molecules in the vicinity of Feshbach resonance. Our measurement also shows that the number of atoms generated from the dissociation process is different at various magnetic fields with the same RF amplitude, which gives us a deeper understanding of weakly bound Feshbach molecules.
Bibliography:Huang Liang-Hui, Wang Peng-Jun, Fu Zheng-Kun, and Zhang Jing （ State Key Laboratory of Quantum Optics and Quantum Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China）
11-5639/O4
ISSN:1674-1056
2058-3834