Formation of ultracold fermionic NaLi Feshbach molecules
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We describe the formation of fermionic NaLi Feshbach molecules from an ultracold mixture of bosonic [superscript 23]Na and fermionic [superscript 6]Li. Precise magnetic field sweeps across a narrow Feshbach resonance at 745 G result in a molecule conversion fraction of 5% for our experimental densities and temperatures, corresponding to a molecule number of 5×10[superscript 4]. The observed molecular decay lifetime is 1.3 ms after removing free Li and Na atoms from the trap. Due to its extremely low reactivity, NaLi molecules in the ground state will have a much longer lifetime than KRb.
Date issued
2012-08Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Research Laboratory of Electronics; MIT-Harvard Center for Ultracold AtomsJournal
Physical Review A
Publisher
American Physical Society
Citation
Heo, Myoung-Sun et al. “Formation of Ultracold Fermionic NaLi Feshbach Molecules.” Physical Review A 86.2 (2012). ©2012 American Physical Society
Version: Final published version
ISSN
1050-2947
1094-1622