We discuss the stability of homonuclear and heteronuclear mixtures of 3He and 4He atoms in the metastable 2 3S1 state (He*) and predict positions and widths of Feshbach resonances by using the asymptotic-bound-state model. All calculations are performed without fit parameters, using ab initio calculations of molecular potentials. One promising very broad Feshbach resonance (??B = 72.9+18.3 -19.3 mT) is found that allows for tuning of the interisotope scattering length.
|Number of pages||10|
|Journal||Physical Review A : Atomic, Molecular and Optical Physics|
|Publication status||Published - 2010|