Quantum control of trapped polyatomic molecules for eEDM searches

• DOI: 10.1126/science.adg8155
• Publication Date: 2023-11-09T18:59:31Z
• Authors: Loïc Anderegg; Nathaniel B. Vilas; Christian Hallas; Paige Robichaud; Arian Jadbabaie; John M. Doyle; Nicholas R. Hutzler
• Keywords: Polyatomic ion; Quantum sensor; Coherent control

Ultracold polyatomic molecules are promising candidates for experiments in quantum science and precision searches physics beyond the Standard Model. A key requirement is ability to achieve full control over internal structure of molecules. In this work, we established coherent individual states calcium monohydroxide (CaOH) demonstrated a method searching electron electric dipole moment (eEDM). Optically trapped, ultracold CaOH were prepared single state, polarized an field, coherently transferred into eEDM-sensitive state where spin precession measurement was performed. To extend coherence time, used with tunable, near-zero magnetic field sensitivity. Our results establish path eEDM trapped