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Ultracold hydrogen atoms: a versatile coolant to produce ultracold molecules

González-Martínez, M.L.; Hutson, J.M.

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Authors

M.L. González-Martínez



Abstract

We show theoretically that ultracold hydrogen atoms have very favorable properties for sympathetic cooling of molecules to microkelvin temperatures. We calculate the potential energy surfaces for spin-polarized interactions of H atoms with the prototype molecules NHð3Þ and OHð2Þ and show that they are shallow (50 to 80 cm1) and only weakly anisotropic. We carry out quantum collision calculations on H þ NH and H þ OH and show that the ratio of elastic to inelastic cross sections is high enough to allow sympathetic cooling from temperatures well over 1 K for NH and around 250 mK for OH.

Citation

González-Martínez, M., & Hutson, J. (2013). Ultracold hydrogen atoms: a versatile coolant to produce ultracold molecules. Physical Review Letters, 111(20), Article 203004. https://doi.org/10.1103/physrevlett.111.203004

Journal Article Type Article
Publication Date Nov 1, 2013
Deposit Date Nov 14, 2013
Publicly Available Date Mar 29, 2024
Journal Physical Review Letters
Print ISSN 0031-9007
Electronic ISSN 1079-7114
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 111
Issue 20
Article Number 203004
DOI https://doi.org/10.1103/physrevlett.111.203004

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Published Journal Article (443 Kb)
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Copyright Statement
© 2013 American Physical Society




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