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Precise determination of the ground state hyperfine splitting of135Ba+

  • Atoms
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Zeitschrift für Physik A Atoms and Nuclei

Abstract

A microwave-optical double resonance experiment has been performed on135Ba+ ions, confined in a r.f. quadrupole trap. Linewidths as narrow as 0.9 Hz have been obtained on the 7.18 GHz,F=1,m=0 toF=2,m=0 transition. Shifts of the resonance frequency due to magnetic stray fields and the electric trapping field have been observed. The final result, extrapolated to zero field strengths, isΔ υ HFS=7183340234.90(0.57) Hz.

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Authors and Affiliations

  1. Institut für Physik der Universität Mainz, Germany

    W. Becker & G. Werth

Authors
  1. W. Becker
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  2. G. Werth
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Additional information

We thank the Physikalisch-Technische Bundesanstalt (PTB) for lending us a frequency controller and Dr. R. Blatt for help with the measurements. This experiment was supported by the Deutsche Forschungsgemeinschaft.

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Becker, W., Werth, G. Precise determination of the ground state hyperfine splitting of135Ba+ . Z Physik A 311, 41–47 (1983). https://doi.org/10.1007/BF01411605

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  • DOI: https://doi.org/10.1007/BF01411605

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