I'll describe how quantum entanglement can be probed in processes involving heavy particles at the Large Hadron Collider (LHC), with a focus on W and Z bosons and top quarks. Rather than measuring entanglement directly, collider physicists use observable decay patterns—such as angular correlations between leptons—to infer how the spins and quantum states of these particles are linked. I’ll introduce the key ideas in an accessible way, highlight recent experimental strategies, and discuss how these measurements can test the Standard Model and potentially reveal new physics.

IFIC Colloquia organizers