Ultracold Gas of Bosonic (NaK)-Na-23-K-39 Ground-State Molecules

Anno: 2020

Autori: Voges Kai K., Gersema P., Borgloh MMZ., Schulze TA., Hartmann T., Zenesini A., Ospelkaus S.

Affiliazione autori: Leibniz Univ Hannover, Inst Quantenopt, D-30167 Hannover, Germany; Univ Trento, INO CNR BEC Ctr, I-38123 Povo, Italy; Univ Trento, Dipartimento Fis, I-38123 Povo, Italy

Abstract: We report the creation of ultracold bosonic dipolar (NaK)-Na-23-K-39 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 K-39 atoms in a selected hyperfine state. The preparation of bosonic (NaK)-Na-23-K-39 molecules opens the way for future comparisons between fermionic and bosonic ultracold ground-state molecules of the same chemical species.


Volume: 125 (8)      Da Pagina: 083401-1  A: 083401-6

Parole chiavi: Ultracold Molecules, Atom-molecule collision, NaK, Stirap
DOI: 10.1103/PhysRevLett.125.083401

Citazioni: 33
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2022-06-26
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