Nature Communications (Aug 2019)

Measurement of the variation of electron-to-proton mass ratio using ultracold molecules produced from laser-cooled atoms

  • J. Kobayashi,
  • A. Ogino,
  • S. Inouye

DOI
https://doi.org/10.1038/s41467-019-11761-1
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 5

Abstract

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Ultracold molecules are suitable platforms for precision measurements due to their internal degrees of freedom. Here the authors derive a limit on the variation of the electron-to-proton mass ratio by using the spectroscopy of ultracold KRb molecules.