Modeling the adiabatic creation of ultracold polar (NaK)-Na-23-K-40 molecules

Seesselberg, Frauke; Buchheim, Nikolaus; Lu, Zhen-Kai; Schneider, Tobias; Luo, Xin-Yu; Tiemann, Eberhard; Bloch, Immanuel und Gohle, Christoph (2018): Modeling the adiabatic creation of ultracold polar (NaK)-Na-23-K-40 molecules. In: Physical Review A, Bd. 97, Nr. 1, 13405

Abstract

In this work we model and realize stimulated Raman adiabatic passage (STIRAP) in the diatomic (NaK)-Na-23-K-40 molecule from weakly bound Feshbach molecules to the rovibronic ground state via the |v(d) = 5, J = Omega = 1 > excited state in the d(3) Pi electronic potential. We demonstrate how to set up a quantitative model for polar molecule production by taking into account the rich internal structure of the molecules and the coupling laser phase noise. We find excellent agreement between the model predictions and the experiment, demonstrating the applicability of the model in the search for an ideal STIRAP transfer path. In total we produce 5000 fermionic ground-state molecules. The typical phase-space density of the sample is 0.03 and induced dipole moments of up to 0.54 D can be observed.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 2469-9926
• Sprache: Englisch