An improved bound on the electron s electric dipole moment

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Abstract

The imbalance of matter and antimatter in our Universe provides compelling motivation to search for undiscovered particles that violate charge-parity symmetry. Interactions with vacuum fluctuations of the fields associated with these new particles will induce an electric dipole moment of the electron (eEDM). We present the most precise measurement yet of the eEDM using electrons confined inside molecular ions, subjected to a huge intramolecular electric field, and evolving coherently for up to 3 seconds.

Year of Publication
2023
Date Published
2023-07
Journal Title
Science
Volume
381
Start Page or Article ID
46-50
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Cover of Science July 7 2023