Parity-nonconserving interaction-induced light shifts in the 7S1 / 2 – 6D3 / 2 transition of the ultracold 210Fr atoms to probe new physics beyond the standard model

T. Aoki, Y. Torii, B. K. Sahoo, B. P. Das, K. Harada, T. Hayamizu, K. Sakamoto, H. Kawamura, T. Inoue, A. Uchiyama, S. Ito, R. Yoshioka, K. S. Tanaka, M. Itoh, A. Hatakeyama, Y. Sakemi

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6 Citations (Scopus)


We present an experimental technique to measure light shifts due to the nuclear spin independent (NSI) parity-nonconserving (PNC) interaction in the 7 S1 / 2–6 D3 / 2 transition in ultracold 210Fr atoms. The approach we propose is similar to the one by Fortson (Phys Rev Lett 70:2383, 10) to measure the PNC-induced light shift which arises from the interference of parity nonconserving electric dipole transition and electric quadrupole transition amplitudes. Its major advantage is that it can treat more than 10 4 ultracold 210Fr atoms to enhance the shot noise limit. A relativistic coupled-cluster method has been employed to calculate the electric dipole transition amplitudes arising from the PNC interaction. Based on these calculations, we have evaluated the PNC-induced light shifts for transitions between the hyperfine levels of the 7 S1 / 2 and 6 D3 / 2 states and suitable transitions are identified for carrying out PNC measurements. It is possible in principle to probe new physics beyond the standard model with our proposed experimental scheme.

Original languageEnglish
Article number120
JournalApplied Physics B: Lasers and Optics
Issue number4
Publication statusPublished - 2017 Apr 1

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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