Novel spin-precession method for sensitive EDM searches

We demonstrate a spin-precession method to observe and analyze multi-level coherence between all hyperfine levels in the $X ^2\Sigma^+,N=0$ ground state of barium monofluoride ($^{138}$Ba$^{19}$F). The signal is sensitive to the state-preparation Rabi frequency and external electric and magnetic fields applied in searches for a permanent electric dipole moment (EDM). In the obtained interference spectrum, the electric field and Rabi frequency become observable simultaneously with the EDM. This method reduces systematic biases and the number of auxiliary measurements for such precision measurements.

[1]  Kia Boon Ng,et al.  An improved bound on the electron’s electric dipole moment , 2022, Science.

[2]  J. Singh,et al.  Measurement of the Electric Dipole Moment of $^{171}$Yb Atoms in an Optical Dipole Trap , 2022, 2207.08140.

[3]  M. Pospelov,et al.  Standard Model Prediction for Paramagnetic Electric Dipole Moments. , 2022, Physical review letters.

[4]  Pi A. B. Haase,et al.  Systematic study and uncertainty evaluation of P, T-odd molecular enhancement factors in BaF. , 2021, The Journal of chemical physics.

[5]  R. Timmermans,et al.  A supersonic laser ablation beam source with narrow velocity spreads. , 2021, The Review of scientific instruments.

[6]  S. Lamoreaux,et al.  CeNTREX: a new search for time-reversal symmetry violation in the 205Tl nucleus , 2020, Quantum Science and Technology.

[7]  A. Jayich,et al.  Electron Electric Dipole Moment Searches Using Clock Transitions in Ultracold Molecules. , 2020, Physical review letters.

[8]  C. Panda,et al.  Improved limit on the electric dipole moment of the electron , 2018, Nature.

[9]  E. A. Hessels,et al.  Orientation-dependent hyperfine structure of polar molecules in a rare-gas matrix: A scheme for measuring the electron electric dipole moment , 2018, Physical Review A.

[10]  Pi A. B. Haase,et al.  Measuring the electric dipole moment of the electron in BaF , 2018, The European Physical Journal D.

[11]  E. A. Hessels,et al.  Oriented Polar Molecules in a Solid Inert-Gas Matrix: A Proposed Method for Measuring the Electric Dipole Moment of the Electron , 2017, 1710.08785.

[12]  K. Cossel,et al.  Precision Measurement of the Electron's Electric Dipole Moment Using Trapped Molecular Ions. , 2017, Physical review letters.

[13]  B. Heckel,et al.  Reduced Limit on the Permanent Electric Dipole Moment of ^{199}Hg. , 2016, Physical review letters.

[14]  M. Bishof,et al.  Improved limit on the 225 Ra electric dipole moment , 2016 .

[15]  K. Jungmann,et al.  Determination of transition frequencies in a single 138 Ba + ion , 2015, 1504.01285.

[16]  E. Hinds,et al.  Measurement of the electron's electric dipole moment using YbF molecules: methods and data analysis , 2012, 1208.4507.

[17]  E. Hinds,et al.  Improved measurement of the shape of the electron , 2011, Nature.

[18]  James K. G. Watson,et al.  Rotational Spectroscopy of Diatomic Molecules , 2003 .

[19]  E. Commins,et al.  New limit on the electron electric dipole moment. , 2002, Physical review letters.

[20]  P. Sandars.  The Search for Violation of P or T Invariance in Atoms or Molecules , 1975 .