Multichannel quantum-defect theory for magnetic Feshbach resonances in heteronuclear group I systems

Abstract

We present a multichannel quantum-defect theory for magnetic Feshbach resonances in the interaction of two heteronuclear group I atoms. The theory provides a unified and a uniform description of resonances in all partial waves, and enables the characterization of large number of resonances in terms of very few parameters. For the sample system of ${}^6$Li${}^{40}$K, we present descriptions of all resonances in $aa$, $ab$, and $ba$ channels, in partial waves $s$ ($l=0$) through $h$ ($l=5$), and in a magnetic field of 0 through 1000 Gauss. All resonances, including those in nonzero partial waves, are fully characterized using the newly developed parametrization of Gao [Phy. Rev. A \textbf{84}, 022706 (2011)].

arXiv comment9 pages, 7 figures

References in corpus (20)

• Feshbach Resonances in Ultracold Gases
• Production of cold molecules via magnetically tunable Feshbach resonances
• Tuning p-wave interactions in an ultracold Fermi gas of atoms
• Feshbach resonances in rubidium 87: Precision measurement and analysis
• Exploring an ultracold Fermi-Fermi mixture: Interspecies Feshbach resonances and scattering properties of 6Li and 40K
• P-wave Feshbach resonances of ultra-cold ${}^6$Li
• Feshbach Resonances in Fermionic Lithium-6
• p-wave Feshbach molecules
• High-precision calculations of van der Waals coefficients for heteronuclear alkali-metal dimers
• Feshbach spectroscopy and analysis of the interaction potentials of ultracold sodium
• Multichannel quantum-defect theory for slow atomic collisions
• Analytic description of atomic interaction at ultracold temperatures: the case of a single channel
• Broad versus narrow Fano-Feshbach resonances in the BCS-BEC crossover with trapped Fermi atom
• Observation of Feshbach resonances between ultracold Na and Rb atoms
• Production of three-body Efimov molecules in an optical lattice
• Analytic description of atomic interaction at ultracold temperatures II: Scattering around a magnetic Feshbach resonance
• Quantum Defect Theory for High Partial Wave Cold Collisions
• Prediction of Feshbach resonances from three input parameters
• Metastable Feshbach Molecules in High Rotational States
• Multichannel quantum-defect theory for ion-atom interactions

Cited by in corpus (6)

• Observation of "broad" d-wave Feshbach resonances with a triplet structure
• Observation of broad p-wave Feshbach resonances in ultracold ${}^{85}$Rb-${}^{87}$Rb mixtures
• Multichannel interactions of two atoms in an optical tweezer
• Broad Feshbach resonances in ultracold alkali-metal systems
• Feshbach spectroscopy of an ultracold ${}^{41}$K-${}^6$Li mixture and ${}^{41}$K atoms
• Multichannel quantum-defect theory for anisotropic interactions