Cold collision frequency shift of the 1S-2S transition in hydrogen

@article{Killian1998ColdCF,
  title={Cold collision frequency shift of the 1S-2S transition in hydrogen},
  author={T. Killian and Dale. G. Fried and L. Willmann and David Landhuis and S. Moss and T. Greytak and D. Kleppner},
  journal={Physical Review Letters},
  year={1998},
  volume={81},
  pages={3807-3810}
}
  • T. Killian, Dale. G. Fried, +4 authors D. Kleppner
  • Published 1998
  • Physics
  • Physical Review Letters
  • We have observed the cold collision frequency shift of the 1S-2S transition in trapped spin-polarized atomic hydrogen. We find Delta v(1s-2s) = -3.8 +/- 0.8 x 10(-10)n Hz cm(3), where n is the sample density. From this we derive the 1S-2S s-wave triplet scattering length, a(1s-2s) = -1.4 +/- 0.3 nm, which is in fair agreement with a recent calculation. The shift provides a valuable probe of the distribution of densities in a trapped sample. [S0031-9007(98)07613-3]. 
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    References

    SHOWING 1-10 OF 45 REFERENCES
    I
    • 72,567
    • PDF
    Phys
    • Rev. Lett following Letter,81, 3811
    • 1998
    Phys. Rev. Lett
    • Phys. Rev. Lett
    • 1998
    Phys. Rev. Lett. XX, XXX
    • Phys. Rev. Lett. XX, XXX
    • 1998
    Phys
    • Rev Lett. 78, 985
    • 1997
    Phys
    • Rev. Lett. 78, 586
    • 1997
    Phys
    • Rev. A56, R4389
    • 1997
    Phys. Rev. A
    • Phys. Rev. A
    • 1997
    Phys. Rev. Lett
    • Phys. Rev. Lett
    • 1997
    Phys. Rev. Lett
    • Phys. Rev. Lett
    • 1997