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Collision-induced spin depolarization of alkali-metal atoms in cold He3 gas

Publication ,  Journal Article
Tscherbul, TV; Zhang, P; Sadeghpour, HR; Dalgarno, A; Brahms, N; Au, YS; Doyle, JM
Published in: Physical Review A - Atomic, Molecular, and Optical Physics
December 31, 2008

We present a joint experimental and theoretical study of spin depolarization in collisions of alkali-metal atoms with He3 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 He3 gas. Magnetic trapping experiments provide upper bounds to the spin exchange rates for Li- He3 and K- He3, 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. © 2008 The American Physical Society.

Duke Scholars

Published In

Physical Review A - Atomic, Molecular, and Optical Physics

DOI

EISSN

1094-1622

ISSN

1050-2947

Publication Date

December 31, 2008

Volume

78

Issue

6

Related Subject Headings

  • General Physics
  • 03 Chemical Sciences
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Tscherbul, T. V., Zhang, P., Sadeghpour, H. R., Dalgarno, A., Brahms, N., Au, Y. S., & Doyle, J. M. (2008). Collision-induced spin depolarization of alkali-metal atoms in cold He3 gas. Physical Review A - Atomic, Molecular, and Optical Physics, 78(6). https://doi.org/10.1103/PhysRevA.78.060703
Tscherbul, T. V., P. Zhang, H. R. Sadeghpour, A. Dalgarno, N. Brahms, Y. S. Au, and J. M. Doyle. “Collision-induced spin depolarization of alkali-metal atoms in cold He3 gas.” Physical Review A - Atomic, Molecular, and Optical Physics 78, no. 6 (December 31, 2008). https://doi.org/10.1103/PhysRevA.78.060703.
Tscherbul TV, Zhang P, Sadeghpour HR, Dalgarno A, Brahms N, Au YS, et al. Collision-induced spin depolarization of alkali-metal atoms in cold He3 gas. Physical Review A - Atomic, Molecular, and Optical Physics. 2008 Dec 31;78(6).
Tscherbul, T. V., et al. “Collision-induced spin depolarization of alkali-metal atoms in cold He3 gas.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 78, no. 6, Dec. 2008. Scopus, doi:10.1103/PhysRevA.78.060703.
Tscherbul TV, Zhang P, Sadeghpour HR, Dalgarno A, Brahms N, Au YS, Doyle JM. Collision-induced spin depolarization of alkali-metal atoms in cold He3 gas. Physical Review A - Atomic, Molecular, and Optical Physics. 2008 Dec 31;78(6).

Published In

Physical Review A - Atomic, Molecular, and Optical Physics

DOI

EISSN

1094-1622

ISSN

1050-2947

Publication Date

December 31, 2008

Volume

78

Issue

6

Related Subject Headings

  • General Physics
  • 03 Chemical Sciences
  • 02 Physical Sciences
  • 01 Mathematical Sciences