Formation of van der Waals Molecules in Buffer-Gas-Cooled Magnetic Traps

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Formation of van der Waals Molecules in Buffer-Gas-Cooled Magnetic Traps

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Title: Formation of van der Waals Molecules in Buffer-Gas-Cooled Magnetic Traps
Author: Dalgarno, Alexander; Brahms, Nathan; Tscherbul, Timur; Zhang, Peng; Klos, Jacek; Sadeghpour, Hossein R.; Doyle, John M.; Walker, Thad G.

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Citation: Brahms, Nathan, Timur V. Tscherbul, Peng Zhang, Jacek Klos, Hossein R. Sadeghpour, Alexander Dalgarno, John M. Doyle, and Thad G. Walker. 2010. Formation of van der Waals molecules in buffer-gas-cooled magnetic traps. Physical Review Letters 105:033001.
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Abstract: We predict that a large class of helium-containing cold polar molecules form readily in a cryogenic buffer gas, achieving densities as high as 10\(^{12}\)  cm\(^{-3}\). We explore the spin relaxation of these molecules in buffer-gas-loaded magnetic traps and identify a loss mechanism based on Landau-Zener transitions arising from the anisotropic hyperfine interaction. Our results show that the recently observed strong \(T^{-6}\) thermal dependence of the spin-change rate of silver (Ag) trapped in dense \(^{3}\)He is accounted for by the formation and spin change of Ag\(^{3}\)He van der Waals molecules, thus providing indirect evidence for molecular formation in a buffer-gas trap.
Published Version: doi:10.1103/PhysRevLett.105.033001
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:5125274

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  • FAS Scholarly Articles [7105]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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