Feshbach resonances in ultracold ⁶,⁷Li + ²³Na atomic mixtures

الأصل · EN

We report a theoretical study of Feshbach resonances in ⁶Li + ²³Na and ⁷Li + ²³Na mixtures at ultracold temperatures using new accurate interaction potentials in a full quantum coupled-channel calculation. Feshbach resonances for l=0 in the initial collisional open channel ⁶Li(f=1/2, mf=1/2) + ²³Na(f=1, mf=1) are found to agree with previous measurements, leading to precise values of the singlet and triplet scattering lengths for the ⁶,⁷Li+²³Na pairs. We also predict additional Feshbach resonances within experimentally attainable magnetic fields for other collision channels.