Quantum Observables for Collider Physics 2026

The third Quantum Observables for Collider Physics workshop took place at CERN on April 20-24, 2026. I co-organized the meeting, which gathered theorists and experimentalists interested in measuring quantum-information observables, including entanglement and magic, on particles created at colliders.

The programme covered recent experimental results, the potential of these observables for new-physics searches, and feasibility studies across final states at current and future colliders. It also explored how quantum-information concepts can enrich quantum field theory and particle physics, alongside wider links with quantum technologies and nuclear theory. Young scientists were integral to the programme, with a dedicated poster session and competition providing a platform for their contributions.

More about the workshop can be found in the CERN Courier report with Alan Barr and in my QOCP summary for the LHC Top Working Group.