Feshbach resonances in ultracold K(39)
arXiv:0705.3036 · doi:10.1088/1367-2630/9/7/223
Abstract
We discover several magnetic Feshbach resonances in collisions of ultracold K(39) atoms, by studying atom losses and molecule formation. Accurate determination of the magnetic-field resonance locations allows us to optimize a quantum collision model for potassium isotopes. We employ the model to predict the magnetic-field dependence of scattering lengths and of near-threshold molecular levels. Our findings will be useful to plan future experiments on ultracold potassium atoms and molecules.
7 pages, 6 figures
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Cited by in corpus (13)
- Observation of an Efimov spectrum in an atomic system
- Atom interferometry with a weakly-interacting Bose Einstein condensate
- Magnetic dipolar interaction in an atomic Bose Einstein condensate interferometer
- Potassium ground state scattering parameters and Born-Oppenheimer potentials from molecular spectroscopy
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- Stability of a BEC with Higher-order Interactions near a Feshbach Resonance
- Generation of nonground-state Bose-Einstein condensates by modulating atomic interactions
- Thomas-Fermi Approximation for a Condensate with Higher-order Interactions
- Spectroscopy of the a^3Σ_u^+ state and the coupling to the X^1Σ_g^+ state of K_2
- Direct evaporative cooling of 41K into a Bose-Einstein condensate
- Collisional and molecular spectroscopy in an ultracold Bose-Bose mixture
- Conditions for Efimov Physics for Finite Range Potentials
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