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

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.

Bibliographic Details
Main Authors: J. Kobayashi, A. Ogino, S. Inouye
Format: Article
Language:English
Published: Nature Publishing Group 2019-08-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-019-11761-1