Production of ultracold NH molecules by sympathetic cooling with Mg

Details Production of ultracold NH molecules by sympathetic cooling with Mg Production of ultracold NH molecules by sympathetic cooling with Mg

2009-06-29

arxiv.org/abs/0906.5314v2

Phys. Rev. Lett. 103, 183201 (2009)

Physics

Chemical Physics

4 pages, 4 figures

Scientific paper

We carry out calculations on $M$-changing collisions of NH ($^3\Sigma^-$) molecules in magnetically trappable states using a recently calculated potential energy surface. We show that elastic collision rates are much faster than inelastic rates for a wide range of fields at temperatures up to 10 mK and that the ratio increases for lower temperatures and magnetic fields. If NH molecules can be cooled to temperatures approaching 10 mK and brought into contact with laser-cooled Mg then there is a good prospect that sympathetic cooling can be achieved.

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