Ultracold Rb-OH collisions and prospects for sympathetic cooling

Abstract

We have computed ab inito cross sections for cold collisions of Rb atoms with OH radicals. We predict collision rate constants of order 10^{-11} cm^3/s at temperatures in the range 10-100 mK at which molecules have already been produced experimentally. However, we also find that in these collisions the molecules have a strong propensity for changing their internal state, which could make sympathetic cooling of OH in a Rb buffer gas problematic in magnetostatic or electrostatic traps.

arXiv commentsubmitted to PRL

References in corpus (8)

• Quo vadis, cold molecules? - Editorial review
• Molecules Near Absolute Zero and External Field Control of Atomic and Molecular Dynamics
• An AC electric trap for ground-state molecules
• Microwave traps for cold polar molecules
• Three-body non-additive forces between spin-polarized alkali atoms
• On the interaction of NH($X^3{\Sigma }^{-}$) molecules with rubidium atoms: implications for sympathetic cooling and the formation of extremely polar molecules
• Cold free radical molecules in the laboratory frame
• Influence of magnetic fields on cold collisions of polar molecules

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