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Area of Science:

  • Atomic and Molecular Physics
  • Particle Physics
  • Quantum Information Science

Background:

  • Molecules offer significant amplification for probing fundamental symmetry violations.
  • Improving experimental sensitivity necessitates suppressing external electromagnetic field effects.
  • Controlling external fields remains a key challenge in precision measurements.

Purpose of the Study:

  • To develop methods for simultaneously suppressing sensitivity to external magnetic and electric fields in molecular measurements.
  • To maintain large amplification of CP-violating effects while mitigating systematic errors.
  • To enhance molecular searches for physics beyond the Standard Model.

Main Methods:

  • Engineered radio frequency, microwave, or two-photon transitions were utilized.
  • Clock measurements were performed on these engineered transitions.
  • The method is compatible with Ramsey measurements and offers internal co-magnetometry.

Main Results:

  • Simultaneous suppression of sensitivity to external magnetic and electric fields was achieved.
  • Suppression factors of ≳100 were generically obtained for external field sensitivity.
  • The method is applicable to systems with large angular momentum.

Conclusions:

  • The developed technique significantly reduces systematic errors in molecular precision measurements.
  • This method enhances the ability to measure CP-violating observables like the electron electric dipole moment.
  • It provides a robust platform for future searches for new physics in molecules.