Spin Interferometry in a Beam of Ultracold Molecules (opens in new tab)

Author(s): R. A. Jenkins, M. T. Ziemba, F. J. Collings, X. S. Zheng, F. Castellini, E. Wursten, J. Lim, B. E. Sauer, and M. R. TarbuttWe describe a spin interferometer using ultracold YbF molecules and develop the complete set of techniques needed to measure the electron’s electric dipole moment, ${d}_{e}$, with this apparatus. The molecules are cooled in an optical molasses and prepared in a single internal quantum state. A Raman…[Phys. Rev. Lett. 136, 253401] Published Tue Jun 23, 2026