
CERN’s ATLAS confirms quantum entanglement in Higgs-boson decays
CERN’s ATLAS collaboration has reported strong evidence that Z bosons produced in Higgs-boson decays are quantum entangled. Using data from the Large Hadron Collider, researchers confirmed that these massive, short-lived particles exhibit entangled spin states, marking the first such observation for vector bosons at the electroweak scale. The result, published in Physical Review Letters, reaches a statistical significance of 4.7 sigma, falling just short of the 5-sigma threshold required for a formal discovery.













