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

Details Feshbach resonances in ultracold ^{6,7}Li + ^{23}Na atomic mixtures Feshbach resonances in ultracold ^{6,7}Li + ^{23}Na atomic mixtures

2007-09-18

arxiv.org/abs/0709.2924v3

Physics

Atomic Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevA.78.010701

We report a theoretical study of Feshbach resonances in $^{6}$Li + $^{23}$Na and $^{7}$Li + $^{23}$Na 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 $^6$Li$(f=1/2, m_f=1/2) + ^{23}$Na$(f=1, m_f=1)$ are found to agree with previous measurements, leading to precise values of the singlet and triplet scattering lengths for the $^{6,7}$Li$+^{23}$Na pairs. We also predict additional Feshbach resonances within experimentally attainable magnetic fields for other collision channels.

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