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Updated: Jul 18, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
Ultracold Rb-OH collisions and prospects for sympathetic cooling
Manuel Lara1, John L Bohn, Daniel Potter
1JILA, NIST, and Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA.
Abstract:
We compute ab initio cross sections for cold collisions of Rb atoms with OH radicals. We predict collision rate constants of order 10(-11) cm3/s at temperatures in the range 10-100 mK at which molecules have already been produced. 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.
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