Feshbach resonances and weakly bound molecular states of boson-boson and boson-fermion NaK pairs

Abstract

We study theoretically magnetically induced Feshbach resonances and near-threshold bound states in isotopic NaK pairs. Our calculations accurately reproduce Feshbach spectroscopy data on Na${}^{40}$K and explain the origin of the observed multiplets in the p-wave [Phys. Rev. A 85, 051602(R) (2012)]. We apply the model to predict scattering and bound state threshold properties of the boson-boson Na${}^{39}$K and Na${}^{41}$K systems. We find that the Na${}^{39}$K isotopic pair presents broad magnetic Feshbach resonances and favorable ground-state features for producing non-reactive polar molecules by two-photon association. Broad s-wave resonances are also predicted for Na${}^{41}$K collisions.

39 pages, 15 figures. Phys. Rev. A in press

References in corpus (15)

• A High Phase-Space-Density Gas of Polar Molecules
• Observation of Fermi Polarons in a Tunable Fermi Liquid of Ultracold Atoms
• Ultracold dense samples of dipolar RbCs molecules in the rovibrational and hyperfine ground state
• Ultracold Dipolar Gas of Fermionic ${}^{23}$Na${}^{40}$K Molecules in their Absolute Ground State
• 39-K Bose-Einstein condensate with tunable interactions
• Ultracold Fermionic Feshbach Molecules of ${}^{23}$Na${}^{40}$K
• Feshbach resonances in ultracold K(39)
• Generic Phase Diagram of Fermion Superfluids with Population Imbalance
• Exact Numerical Study of Pair Formation with Imbalanced Fermion Populations
• Adiabatic association of ultracold molecules via magnetic field tunable interactions
• Quantum correlations and spatial localization in one-dimensional ultracold bosonic mixtures
• Contrasting the wide Feshbach resonances in ${}^6$Li and ${}^7$Li
• Two-Photon Pathway to Ultracold Ground State Molecules of ${}^{23}$Na${}^{40}$K
• All optical cooling of ${}^{39}$K to Bose Einstein condensation
• Direct evaporative cooling of 41K into a Bose-Einstein condensate

Cited by in corpus (15)

• Transition from a polaronic condensate to a degenerate Fermi gas of heteronuclear molecules
• Mobile impurity in a Bose-Einstein condensate and the orthogonality catastrophe
• Controlled state-to-state atom-exchange reaction in an ultracold atom-dimer mixture
• Feshbach spectroscopy and dual-species Bose-Einstein condensation of ${}^{23}\mathrm{Na}-$${}^{39}\mathrm{K}$ mixtures
• Suppression of Unitary Three-body Loss in a Degenerate Bose-Fermi Mixture
• Exploring ultracold collisions in ${}^6$Li-${}^{53}$Cr Fermi mixtures: Feshbach resonances and scattering properties of a novel alkali-transition metal system
• Broad Feshbach resonances in ultracold alkali-metal systems
• Feshbach Loss Spectroscopy in an Ultracold ${}^{23}$Na and ${}^{40}$K Mixture
• A compact experimental machine for studying tunable Bose-Bose superfluid mixtures
• Feshbach resonances in ${}^{23}\mathrm{Na}+$${}^{39}\mathrm{K}$ mixtures and refined molecular potentials for the NaK molecule
• Shell-Shaped Quantum Droplet in a Three-Component Ultracold Bose Gas
• Quantitative analysis of losses close to a d-wave open-channel Feshbach resonance in Potassium 39
• Long-lived fermionic Feshbach molecules with tunable $p$-wave interactions
• Miscibility of Binary Bose-Einstein Condensates with $p$-wave Interaction
• Probing $p$-wave effects in spin-density separation of Bose mixtures with the dynamic structure factor