Atomic spin squeezing towards sub-shot-noise measurement of permanent electric dipole moment

T. Takano*, M. Fuyama, H. Yamamoto, Y. Takahashi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We have been studying laser-cooled and trapped atoms towards the detection of the permanent electric dipole moment (p-EDM). The existence of the p-EDM shows the CP-violation and its detection has significant implications for the test of the proposed elementary particle models. However, the current experimental accuracy has not yet reached the range of the predicted value of the standard model. Especially, a measurement error due to a shot noise is one of the important factors. To overcome the shot-noise limit, we are now trying to generate the atomic squeezed spin state.

Original languageEnglish
Title of host publicationProceedings of the 17th International Spin Physics Symposium
Number of pages7
Publication statusPublished - 2007 Sept 24
Externally publishedYes
Event17th International Spin Physics Symposium - Kyoto, Japan
Duration: 2006 Oct 22006 Oct 7

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference17th International Spin Physics Symposium


  • CP violation
  • QND
  • Shot noise
  • Squeezing
  • p-EDM

ASJC Scopus subject areas

  • General Physics and Astronomy


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