The three p-wave Feshback resonances of the ultracold 6Li atoms in the lowest hyperfine state f=1/2, were analyzed. The p-wave resonances were observed to have their origin in the same singlet bound state which leads to the s-wave Feshbach resonances located at 543 G and ∼830 G. The lifetime of the cloud in the vicinity of the Feschbach resonances was studied and exhibited that, two- or three-body mechanisms are at play, depending on the spin states. As the reduction of inelastic losses close to a s-wave Feshbach resonance was observed as a key ingredient to fermionic superfluids, the formation of stable atom pairs requires a full description of decay mechanism at play close to a p-wave resonance.
|Physical Review A - Atomic, Molecular, and Optical Physics
|Published - Sep 2004
Bibliographical noteFunding Information:
We thank Z. Hadzibabic for very helpful discussions. S.K. acknowledges support from the Netherlands Organization for Scientific Research (NWO). E.K. acknowledges support from the Stichting FOM, which is financially supported by NWO. This work was supported by CNRS, and Collège de France. Laboratoire Kastler Brossel is Unité de recherche de l’École Normale Supérieure et de l’Université Pierre et Marie Curie, associée au CNRS .