GoKawiilBESIII experiment uses antimatter entanglement to measure rare lambda hyperon decay
The BESIII Collaboration measured the decay of lambda hyperons, in which a strange quark converts into an up quark, by exploiting quantum entanglement between the particle and its antimatter counterpart to 'tag' the event. This technique allowed them to determine a decay parameter that had eluded precise measurement for 35 years, and their result matches predictions from established physics theory.