Collision-Induced Spin Depolarization of Alkali-metal Atoms in Cold \(^3\)He Gas

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Collision-Induced Spin Depolarization of Alkali-metal Atoms in Cold \(^3\)He Gas

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Title: Collision-Induced Spin Depolarization of Alkali-metal Atoms in Cold \(^3\)He Gas
Author: Tscherbul, T.V.; Zhang, Peng; Sadeghpour, Hossein R.; Dalgarno, Alexander; Brahms, N.; Au, Yat Shan; Doyle, John M.

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Citation: Tscherbul, T.V., Peng Zhang, Hossein R. Sadeghpour, Alexander Dalgarno, N. Brahms, Yat Shan Au, and John M. Doyle. 2008. Collision-induced spin depolarization of alkali-metal atoms in cold \(^3\)He gas. Physical Review A 78(6): 060703(R).
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Abstract: We present a joint experimental and theoretical study of spin depolarization in collisions of alkali-metal atoms with \(^3\)He in a magnetic field. A rigorous quantum theory for spin-changing transitions is developed and applied to calculate the spin exchange and spin relaxation rates of Li and K atoms in cryogenic \(^3\)He gas. Magnetic trapping experiments provide upper bounds to the spin exchange rates for Li-\(^3\)He and K-\(^3\)He, which are in agreement with the present theory. Our calculations demonstrate that the alkali-metal atoms have extremely slow spin depolarization rates, suggesting a number of potential applications in precision spectroscopy and quantum optics.
Published Version: doi:10.1103/PhysRevA.78.060703
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:5349608

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  • FAS Scholarly Articles [7594]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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