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Ultracold Triplet Molecules in the Rovibrational Ground State

F. Lang, K. Winkler, C. Strauss, R. Grimm, and J. Hecker Denschlag
Phys. Rev. Lett. 101, 133005 – Published 25 September 2008
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Abstract

We report here on the production of an ultracold gas of tightly bound Rb2 triplet molecules in the rovibrational ground state, close to quantum degeneracy. This is achieved by optically transferring weakly bound Rb2 molecules to the absolute lowest level of the ground triplet potential with a transfer efficiency of about 90%. The transfer takes place in a 3D optical lattice which traps a sizeable fraction of the tightly bound molecules with a lifetime exceeding 200 ms.

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  • Received 5 September 2008

DOI:https://doi.org/10.1103/PhysRevLett.101.133005

©2008 American Physical Society

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From atoms to molecules (and back)

Published 25 September 2008

Atoms colliding in a magnetic field can form weakly bound states called Feshbach molecules. These states have now been used in combination with advanced laser techniques to create tightly bound ground-state molecules close to quantum degeneracy.

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Authors & Affiliations

F. Lang1, K. Winkler1, C. Strauss1, R. Grimm1,2, and J. Hecker Denschlag1

  • 1Institut für Experimentalphysik und Zentrum für Quantenphysik, Universität Innsbruck, A-6020 Innsbruck, Austria
  • 2Institut für Quantenoptik und Quanteninformation der Österreichischen Akademie der Wissenschaften, A-6020 Innsbruck, Austria

See Also

Formation of Ultracold Polar Molecules in the Rovibrational Ground State

J. Deiglmayr, A. Grochola, M. Repp, K. Mörtlbauer, C. Glück, J. Lange, O. Dulieu, R. Wester, and M. Weidemüller
Phys. Rev. Lett. 101, 133004 (2008)

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Issue

Vol. 101, Iss. 13 — 26 September 2008

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