CERN researchers observe quantum entanglement in top quarks at unprecedented energy levels.

Researchers at CERN's Large Hadron Collider have observed quantum entanglement in pairs of top quarks, the heaviest known fundamental particles, at unprecedented energy levels. This marks the first high-energy demonstration of entanglement, previously seen only at lower energies. The findings could enhance understanding of top-quark physics, contribute to quantum information science, and offer new avenues for testing the Standard Model of particle physics.