Quantum entanglement survives among heavy particles in CERN collider test

Oxford physicists working with CERN’s Large Hadron Collider found strong evidence that quantum entanglement can persist among some of the heaviest, shortest-lived particles ever produced, including Z bosons entangled during Higgs boson decays. The result, published in Physical Review Letters, shows Einstein’s “spooky action at a distance” holds even under extreme high-energy collision conditions.