Multi-channel modeling and two photon coherent transfer paths in NaK

Abstract

We explore possible pathways for the creation of ultracold polar NaK molecules in their absolute electronic and rovibrational ground state starting from ultracold Feshbach molecules. In particular, we present a multi-channel analysis of the electronic ground and K(4p)+Na(3s) excited state manifold of NaK, analyze the spin character of both the Feshbach molecular state and the electronically excited intermediate states and discuss possible coherent two-photon transfer paths from Feshbach molecules to rovibronic ground state molecules. The theoretical study is complemented by the demonstration of STIRAP transfer from the X^1Σ^+ (v=0) state to the a^3Σ^+ manifold on a molecular beam experiment.

10 pages, 9 figures

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• A High Phase-Space-Density Gas of Polar Molecules
• Bose-Einstein condensation of chromium
• A Strongly Dipolar Bose-Einstein Condensate of Dysprosium
• Bose-Einstein Condensation of Erbium
• Reactions of ultracold alkali metal dimers
• Ultracold Fermionic Feshbach Molecules of ${}^{23}$Na${}^{40}$K
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Cited by in corpus (10)

• Ultracold Dipolar Gas of Fermionic ${}^{23}$Na${}^{40}$K Molecules in their Absolute Ground State
• Modeling the adiabatic creation of ultracold, polar ${}^{23}\mathrm{N}{\mathrm{a}}^{40}\mathrm{K}$ molecules
• Two-Photon Pathway to Ultracold Ground State Molecules of ${}^{23}$Na${}^{40}$K
• Ultracold chemistry with alkali-metal-rare-earth molecules
• Feshbach resonances and weakly bound molecular states of boson-boson and boson-fermion NaK pairs
• Properties of the density-wave phase of a two-dimensional dipolar Fermi gas
• Formation of ultracold weakly bound dimers of bosonic ${}^{23}{\text{Na}}^{39}\text{K}$
• Coexistence of density wave and superfluid order in a dipolar Fermi gas
• Versatile electric fields for the manipulation of ultracold NaK molecules
• A pathway to ultracold bosonic ${}^{23}{\text{Na}}^{39}\text{K}$ ground state molecules