EPJ Web of Conferences (Mar 2014)

Search for a permanent EDM using laser cooled radioactive atom

  • Kawamura Hirokazu,
  • Ando S.,
  • Aoki T.,
  • Arikawa H.,
  • Ezure S.,
  • Harada K.,
  • Hayamizu T.,
  • Inoue T.,
  • Ishikawa T.,
  • Itoh M.,
  • Kato K.,
  • Kato T.,
  • Nataraj H. S.,
  • Sato T.,
  • Uchiyama A.,
  • Aoki T.,
  • Furukawa T.,
  • Hatakeyama A.,
  • Hatanaka K.,
  • Imai K.,
  • Murakami T.,
  • Shimizu Y.,
  • Wakasa T.,
  • Yoshida H. P.,
  • Sakemi Y.

DOI
https://doi.org/10.1051/epjconf/20146605009
Journal volume & issue
Vol. 66
p. 05009

Abstract

Read online

The search for the electric-dipole moment (EDM) of laser-cooled francium (Fr) atoms could lead to a measurement for the electron EDM. It is predicted that the electron EDM would be enhanced by approximately three orders of magnitude in heavy atoms such as Fr. Laser-cooling and trapping techniques are expected to suppress statistical and systematic errors in precision measurements. The magneto-optical trap was achieved using stable rubidium in a developing factory of laser-cooled radioactive atoms. In light of the results from the rubidium experiments, we found that an upgrade of each apparatus is preferred for Fr trapping.