Feshbach spectroscopy and analysis of the interaction potentials of ultracold sodium
| Title: | Feshbach spectroscopy and analysis of the interaction potentials of ultracold sodium |
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| Authors: | Knoop, S., Schuster, T., Scelle, R., Trautmann, A., Appmeier, J., Oberthaler, M. K., Tiesinga, E., Tiemann, E. |
| Source: | Phys. Rev. A 83, 042704 (2011) |
| Publication Year: | 2011 |
| Collection: | Condensed Matter Physics (Other) Quantum Physics |
| Subject Terms: | Condensed Matter - Quantum Gases, Physics - Atomic Physics, Quantum Physics |
| More Details: | We have studied magnetic Feshbach resonances in an ultracold sample of Na prepared in the absolute hyperfine ground state. We report on the observation of three s-, eight d-, and three g-wave Feshbach resonances, including a more precise determination of two known s-wave resonances, and one s-wave resonance at a magnetic field exceeding 200mT. Using a coupled-channels calculation we have improved the sodium ground-state potentials by taking into account these new experimental data, and derived values for the scattering lengths. In addition, a description of the molecular states leading to the Feshbach resonances in terms of the asymptotic-bound-state model is presented. Comment: 11 pages, 4 figures |
| Document Type: | Working Paper |
| DOI: | 10.1103/PhysRevA.83.042704 |
| Access URL: | http://arxiv.org/abs/1102.0572 |
| Accession Number: | edsarx.1102.0572 |
| Database: | arXiv |
| DOI: | 10.1103/PhysRevA.83.042704 |
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