Details
| Original language | English |
|---|---|
| Pages (from-to) | 622-626 |
| Number of pages | 5 |
| Journal | Nature physics |
| Volume | 4 |
| Issue number | 8 |
| Publication status | Published - 22 Jun 2008 |
| Externally published | Yes |
Abstract
Polar molecules have bright prospects for novel quantum gases with long-range and anisotropic interactions, and could find uses in quantum information science and in precision measurements. However, high-density clouds of ultracold polar molecules have so far not been produced. Here, we report a key step towards this goal. We start from an ultracold dense gas of loosely bound 40 K 87 Rb Feshbach molecules with typical binding energies of a few hundred kilohertz, and coherently transfer these molecules in a single transfer step into a vibrational level of the ground-state molecular potential bound by more than 10 GHz. Starting with a single initial state prepared with Feshbach association, we achieve a transfer efficiency of 84%. Given favourable Franck-Condon factors, the presented technique can be extended to access much more deeply bound vibrational levels and those exhibiting a significant dipole moment.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Nature physics, Vol. 4, No. 8, 22.06.2008, p. 622-626.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Efficient state transfer in an ultracold dense gas of heteronuclear molecules
AU - Ospelkaus, S.
AU - Pe'er, A.
AU - Ni, K. K.
AU - Zirbel, J. J.
AU - Neyenhuis, B.
AU - Kotochigova, S.
AU - Julienne, P. S.
AU - Ye, J.
AU - Jin, D. S.
N1 - Funding information: We acknowledge financial support from NIST, NSF and DOE. K.-K.N. and B.N. acknowledge support from the NSF, S.O. from the Alexander-von-Humboldt Foundation and P.S.J. from the ONR. We thank D. Wang for stimulating discussions and C. Ospelkaus for critical reading of the manuscript.
PY - 2008/6/22
Y1 - 2008/6/22
N2 - Polar molecules have bright prospects for novel quantum gases with long-range and anisotropic interactions, and could find uses in quantum information science and in precision measurements. However, high-density clouds of ultracold polar molecules have so far not been produced. Here, we report a key step towards this goal. We start from an ultracold dense gas of loosely bound 40 K 87 Rb Feshbach molecules with typical binding energies of a few hundred kilohertz, and coherently transfer these molecules in a single transfer step into a vibrational level of the ground-state molecular potential bound by more than 10 GHz. Starting with a single initial state prepared with Feshbach association, we achieve a transfer efficiency of 84%. Given favourable Franck-Condon factors, the presented technique can be extended to access much more deeply bound vibrational levels and those exhibiting a significant dipole moment.
AB - Polar molecules have bright prospects for novel quantum gases with long-range and anisotropic interactions, and could find uses in quantum information science and in precision measurements. However, high-density clouds of ultracold polar molecules have so far not been produced. Here, we report a key step towards this goal. We start from an ultracold dense gas of loosely bound 40 K 87 Rb Feshbach molecules with typical binding energies of a few hundred kilohertz, and coherently transfer these molecules in a single transfer step into a vibrational level of the ground-state molecular potential bound by more than 10 GHz. Starting with a single initial state prepared with Feshbach association, we achieve a transfer efficiency of 84%. Given favourable Franck-Condon factors, the presented technique can be extended to access much more deeply bound vibrational levels and those exhibiting a significant dipole moment.
UR - http://www.scopus.com/inward/record.url?scp=48749117455&partnerID=8YFLogxK
U2 - 10.1038/nphys997
DO - 10.1038/nphys997
M3 - Article
AN - SCOPUS:48749117455
VL - 4
SP - 622
EP - 626
JO - Nature physics
JF - Nature physics
SN - 1745-2473
IS - 8
ER -