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Ultracold Dense Samples of Dipolar RbCs Molecules in the Rovibrational and Hyperfine Ground State

Takekoshi, Tetsu; Reichsöllner, Lukas; Schindewolf, Andreas; Hutson, Jeremy M.; Le Sueur, C. Ruth; Dulieu, Olivier; Ferlaino, Francesca; Grimm, Rudolf; Nägerl, Hanns-Christoph

Ultracold Dense Samples of Dipolar RbCs Molecules in the Rovibrational and Hyperfine Ground State Thumbnail


Authors

Tetsu Takekoshi

Lukas Reichsöllner

Andreas Schindewolf

C. Ruth Le Sueur

Olivier Dulieu

Francesca Ferlaino

Rudolf Grimm

Hanns-Christoph Nägerl



Abstract

We produce ultracold dense trapped samples of Rb87Cs133 molecules in their rovibrational ground state, with full nuclear hyperfine state control, by stimulated Raman adiabatic passage (STIRAP) with efficiencies of 90%. We observe the onset of hyperfine-changing collisions when the magnetic field is ramped so that the molecules are no longer in the hyperfine ground state. A strong quadratic shift of the transition frequencies as a function of applied electric field shows the strongly dipolar character of the RbCs ground-state molecule. Our results open up the prospect of realizing stable bosonic dipolar quantum gases with ultracold molecules.

Citation

Takekoshi, T., Reichsöllner, L., Schindewolf, A., Hutson, J. M., Le Sueur, C. R., Dulieu, O., …Nägerl, H. (2014). Ultracold Dense Samples of Dipolar RbCs Molecules in the Rovibrational and Hyperfine Ground State. Physical Review Letters, 113, Article 205301. https://doi.org/10.1103/physrevlett.113.205301

Journal Article Type Article
Acceptance Date May 23, 2013
Online Publication Date Nov 12, 2014
Publication Date Nov 12, 2014
Deposit Date Nov 13, 2014
Publicly Available Date Dec 2, 2014
Journal Physical Review Letters
Print ISSN 0031-9007
Electronic ISSN 1079-7114
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 113
Article Number 205301
DOI https://doi.org/10.1103/physrevlett.113.205301

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Copyright Statement
Reprinted with permission from the American Physical Society: Tetsu Takekoshi, Lukas Reichsöllner, Andreas Schindewolf, Jeremy M. Hutson, C. Ruth Le Sueur, Olivier Dulieu, Francesca Ferlaino, Rudolf Grimm, and Hanns-Christoph Nägerl (2014) 'Ultracold dense samples of dipolar RbCs molecules in the rovibrational and hyperfine ground state.', Physical review letters., 113 . p. 205301. © 2014 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.




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