M.L. González-Martínez
Ultracold hydrogen atoms: a versatile coolant to produce ultracold molecules
González-Martínez, M.L.; Hutson, J.M.
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 | Jan 14, 2014 |
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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Copyright Statement
© 2013 American Physical Society
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