News Particle Physics

The Large Hadron Collider exposes quarks’ quantum entanglement

Top quarks and antiquarks can be linked, a CERN study shows

An illustration shows two circles representing subatomic particles, linked by bright lines, on a background showing a particle detector.

Pairs of top quarks and antiquarks (illustrated) are produced in collisions of protons at the Large Hadron Collider. Scientists have uncovered evidence of quantum entanglement between the particles.

Daniel Dominguez / CERN

By Emily Conover

Quantum entanglement has made its way to the top.

Scientists have measured the strange quantum phenomenon of entanglement in top quarks, the heaviest fundamental subatomic particles known.