Interisotope determination of ultracold rubidium interactions from three high-precision experiments
| Autor: | BJ Boudewijn Verhaar, van Egm Eric Kempen, Sjjmf Servaas Kokkelmans, Daniel J Heinzen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2002 |
| Předmět: |
Physics
Shape resonance Scattering Binding energy General Physics and Astronomy chemistry.chemical_element FOS: Physical sciences Rotational–vibrational spectroscopy Condensed Matter - Soft Condensed Matter Magnetic field Rubidium chemistry Molecule Soft Condensed Matter (cond-mat.soft) Atomic physics Feshbach resonance |
| Zdroj: | Physical Review Letters, 88(9):093201, 093201-1/4. American Physical Society |
| ISSN: | 0031-9007 |
| Popis: | Combining the measured binding energies of four of the most weakly bound rovibrational levels of the $^{87}$Rb$_2$ molecule with the results of two other recent high-precision rubidium experiments, we obtain exceptionally strong constraints on the atomic interaction parameters in a highly model independent analysis. The comparison of $^{85}$Rb and $^{87}$Rb data, where the two isotopes are related by a mass scaling procedure, plays a crucial role. Using the consistent picture of the interactions that thus arises we are led to predictions for scattering lengths, clock shifts, Feshbach resonance fields and widths with an unprecedented level of accuracy. To demonstrate this, we predict two Feshbach resonances in mixed-spin scattering channels at easily accessible magnetic field strengths, which we expect to play a role in the damping of coherent spin oscillations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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