BESIII Experiment Achieves World's Most Precise Measurement of Lambda Hyperon Electric Dipole Moment

The BESIII Collaboration has achieved the world's most precise measurement of the Lambda hyperon's electric dipole moment (EDM) using quantum entanglement. This research utilizes quantum entanglement as a precision tool to investigate fundamental symmetries in short-lived particles like the Lambda hyperon, which contains a strange quark. These measurements provide crucial information complementary to other EDM searches, helping to constrain potential sources of new CP violation beyond the Standard Model.