4.6 Article

Nd+ isotope shift measurements in a cryogenically cooled neutral plasma

期刊

PHYSICAL REVIEW A
卷 101, 期 5, 页码 -

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AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.101.052505

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  1. NSERC
  2. Canada Foundation for Innovation
  3. Ontario Research Fund
  4. Canada Research Chairs
  5. Sloan Research Fellowship

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We report measurements of the isotope shifts of two transitions (4f(4)6s -> [25044.7](7/2)(o) and 4f(4)6s -> [25138.6](7/2)(o)) in neodymium ions (Nd+) with hundredfold improved accuracy, using laser spectroscopy of a cryogenically cooled neutral plasma. The isotope shifts were measured across a set of five spin-zero isotopes that spans a nuclear shape transition. We discuss the prospects for further improvements to the accuracy of Nd+ isotope shifts using optical clock transitions, which could enable extremely precise tests of King plot linearity for new physics searches.

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