Abstract
We describe the first precision measurement of the electron’s electric dipole moment () using trapped molecular ions, demonstrating the application of spin interrogation times over 700 ms to achieve high sensitivity and stringent rejection of systematic errors. Through electron spin resonance spectroscopy on in its metastable electronic state, we obtain , resulting in an upper bound of (90% confidence). Our result provides independent confirmation of the current upper bound of [J. Baron et al., New J. Phys. 19, 073029 (2017)], and offers the potential to improve on this limit in the near future.
- Received 21 April 2017
DOI:https://doi.org/10.1103/PhysRevLett.119.153001
© 2017 American Physical Society
Physics Subject Headings (PhySH)
Viewpoint
Trapped Ions Test Fundamental Particle Physics
Published 9 October 2017
New precision experiments using trapped molecular ions provide an alternative method for determining if the electron has an electric dipole moment.
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