Details
| Original language | English |
|---|---|
| Article number | 083401 |
| Journal | Physical review letters |
| Volume | 125 |
| Issue number | 8 |
| Publication status | Published - 21 Aug 2020 |
Abstract
We report the creation of ultracold bosonic dipolar Na23K39 molecules in their absolute rovibrational ground state. Starting from weakly bound molecules immersed in an ultracold atomic mixture, we coherently transfer the dimers to the rovibrational ground state using an adiabatic Raman passage. We analyze the two-body decay in a pure molecular sample and in molecule-atom mixtures and find an unexpectedly low two-body decay coefficient for collisions between molecules and K39 atoms in a selected hyperfine state. The preparation of bosonic Na23K39 molecules opens the way for future comparisons between fermionic and bosonic ultracold ground-state molecules of the same chemical species.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical review letters, Vol. 125, No. 8, 083401, 21.08.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Ultracold Gas of Bosonic Na 23 K 39 Ground-State Molecules
AU - Voges, Kai K.
AU - Gersema, Philipp
AU - Meyer Zum Alten Borgloh, Mara
AU - Schulze, Torben A.
AU - Hartmann, Torsten
AU - Zenesini, Alessandro
AU - Ospelkaus, Silke
N1 - Funding Information: We thank M. Siercke for enlightening comments and discussions and the group of P. O. Schmidt, PTB Brunswick, for providing scientific material for the Raman laser system. We gratefully acknowledge financial support from the European Research Council through ERC Starting Grant POLAR and from the Deutsche Forschungsgemeinschaft (DFG) through CRC 1227 (DQ-mat), project A03, and FOR 2247, project E5. P. G. thanks the DFG for financial support through RTG 1991.
PY - 2020/8/21
Y1 - 2020/8/21
N2 - We report the creation of ultracold bosonic dipolar Na23K39 molecules in their absolute rovibrational ground state. Starting from weakly bound molecules immersed in an ultracold atomic mixture, we coherently transfer the dimers to the rovibrational ground state using an adiabatic Raman passage. We analyze the two-body decay in a pure molecular sample and in molecule-atom mixtures and find an unexpectedly low two-body decay coefficient for collisions between molecules and K39 atoms in a selected hyperfine state. The preparation of bosonic Na23K39 molecules opens the way for future comparisons between fermionic and bosonic ultracold ground-state molecules of the same chemical species.
AB - We report the creation of ultracold bosonic dipolar Na23K39 molecules in their absolute rovibrational ground state. Starting from weakly bound molecules immersed in an ultracold atomic mixture, we coherently transfer the dimers to the rovibrational ground state using an adiabatic Raman passage. We analyze the two-body decay in a pure molecular sample and in molecule-atom mixtures and find an unexpectedly low two-body decay coefficient for collisions between molecules and K39 atoms in a selected hyperfine state. The preparation of bosonic Na23K39 molecules opens the way for future comparisons between fermionic and bosonic ultracold ground-state molecules of the same chemical species.
UR - http://www.scopus.com/inward/record.url?scp=85090818623&partnerID=8YFLogxK
U2 - 10.1103/physrevlett.125.083401
DO - 10.1103/physrevlett.125.083401
M3 - Article
C2 - 32909799
AN - SCOPUS:85090818623
VL - 125
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 8
M1 - 083401
ER -