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Prospects for sympathetic cooling of polar molecules : NH with alkali-metal and alkaline-earth atoms - a new hope

Soldan, Pavel; Zuchowski, Piotr S.; Hutson, Jeremy M.

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Authors

Pavel Soldan

Piotr S. Zuchowski



Abstract

We explore the potential energy surfaces for NH molecules interacting with alkali-metal and alkaline-earth atoms using highly correlated ab initio electronic structure calculations. The surfaces for interaction with alkali-metal atoms have deep wells dominated by covalent forces. The resulting strong anisotropies will produce strongly inelastic collisions. The surfaces for interaction with alkaline-earth atoms have shallower wells that are dominated by induction and dispersion forces. For Be and Mg the anisotropy is small compared to the rotational constant of NH, so that collisions will be relatively weakly inelastic. Be and Mg are thus promising coolants for sympathetic cooling of NH to the ultracold regime.

Citation

Soldan, P., Zuchowski, P. S., & Hutson, J. M. (2009). Prospects for sympathetic cooling of polar molecules : NH with alkali-metal and alkaline-earth atoms - a new hope. Faraday Discussions, 142, 191-201. https://doi.org/10.1039/b822769c

Journal Article Type Article
Publication Date Jan 1, 2009
Deposit Date Jun 19, 2013
Publicly Available Date Mar 29, 2024
Journal Faraday Discussions
Print ISSN 1359-6640
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 142
Pages 191-201
DOI https://doi.org/10.1039/b822769c

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