Feshbach spectroscopy and scattering properties of ultracold Li+Na mixtures
| Title: | Feshbach spectroscopy and scattering properties of ultracold Li+Na mixtures |
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| Authors: | Schuster, T., Scelle, R., Trautmann, A., Knoop, S., Oberthaler, M. K., Haverhals, M. M., Goosen, M. R., Kokkelmans, S. J. J. M. F., Tiemann, E. |
| Source: | Phys. Rev. A 85, 042721 (2012) |
| Publication Year: | 2012 |
| Collection: | Condensed Matter Physics (Other) Quantum Physics |
| Subject Terms: | Condensed Matter - Quantum Gases, Physics - Atomic Physics, Quantum Physics |
| More Details: | We have observed 26 interspecies Feshbach resonances at fields up to 2050 G in ultracold $^6$Li+$^{23}$Na mixtures for different spin-state combinations. Applying the asymptotic bound-state model to assign the resonances, we have found that most resonances have d-wave character. This analysis serves as guidance for a coupled-channel calculation, which uses modified interaction potentials to describe the positions of the Feshbach resonances well within the experimental uncertainty and to calculate their widths. The scattering length derived from the improved interaction potentials is experimentally confirmed and deviates from previously reported values in sign and magnitude. We give prospects for $^7$Li+$^{23}$Na and predict broad Feshbach resonances suitable for tuning. Comment: 8 pages, 4 figures, version as published in PRA |
| Document Type: | Working Paper |
| DOI: | 10.1103/PhysRevA.85.042721 |
| Access URL: | http://arxiv.org/abs/1202.1199 |
| Accession Number: | edsarx.1202.1199 |
| Database: | arXiv |
| DOI: | 10.1103/PhysRevA.85.042721 |
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