More information: Li-Ren Liu et al, Measurement of the electric dipole moment of AlCl by Stark-level spectroscopy, Physical Review A (2025). DOI: 10.1103/hwwm-1mn7 ...

The result came from a search for the so-called electric dipole moment in the electron. A familiar example of a dipole is a bar magnet, which is shaped like a dumbbell with a north and a south ...