Observation of broad p-wave Feshbach resonances in ultracold ${}^{85}$Rb-${}^{87}$Rb mixtures

Abstract

We observe new Feshbach resonances in ultracold mixtures of ${}^{85}$Rb and ${}^{87}$Rb atoms in the ${}^{85}$Rb$|2,+2⟩$+${}^{87}$Rb$|1,+1⟩$ and ${}^{85}$Rb$|2,-2⟩$+${}^{87}$Rb$|1,-1⟩$ scattering channels. The positions and properties of the resonances are predicted and characterized using the semi-analytic multichannel quantum-defect theory by Gao. Of particular interest, a number of broad entrance-channel dominated p-wave resonances are identified, implicating exciting opportunities for studying a variety of p-wave interaction dominated physics.

7 pages, 6 figures

References in corpus (13)

• A High Phase-Space-Density Gas of Polar Molecules
• Ultracold Molecules in the Ro-Vibrational Triplet Ground State
• 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 molecules
• Observation of Heteronuclear Feshbach Molecules from a ${}^{85}$Rb - ${}^{87}$Rb gas
• Hyperfine, rotational, and vibrational structure of the triplet ground state of Rb molecules
• Feshbach resonances in mixtures of ultracold ${}^6$Li and ${}^{87}$Rb gases
• Collective Modes in a Unitary Fermi Gas across the Superfluid Phase Transition
• Feshbach resonances in ultracold 85Rb
• Prediction of Feshbach resonances from three input parameters
• Feshbach spectroscopy of an ultracold mixture of ${}^{85}$Rb and ${}^{133}$Cs
• Multichannel quantum-defect theory for magnetic Feshbach resonances in heteronuclear group I systems

Cited by in corpus (3)

• Observation of "broad" d-wave Feshbach resonances with a triplet structure
• Stretching p-wave molecules by transverse confinements
• Kosterlitz-Thouless transition and vortex-antivortex lattice melting in two-dimensional Fermi gases with $p$- or $d$-wave pairing