Quantum entanglement, an intriguing aspect of quantum physics, allows particles to remain interconnected regardless of distance. This phenomenon was explored at new heights in 2023 when the ATLAS collaboration at the Large Hadron Collider observed entanglement between top quarks,

Quantum entanglement is a fascinating feature of quantum physics—the theory of the very small. If two particles are quantum-entangled, the state of one particle is tied to that of the other, no matter how far apart the particles are.

Entanglement, a surprising physics prediction, links distant objects as though they are connected. Traditionally

By smashing protons together at blinding speeds, scientists have shown that pairs of quarks display the phenomenon of quantum entanglement. The result could lead to fresh insight about one of the forces holding nuclei together.

Entanglement has yet to be studied much at the high energies of particle colliders like the Large Hadron Collider (LHC). In a new study, the ATLAS collaboration successfully observed quantum entanglement at the LHC for the first time. They observed quantum entanglement between top quarks and at the highest energies yet.

At the Large Hadron Collider in Geneva, the world's largest particle accelerator, an experiment called ATLAS has just found entanglement in pairs of top quarks: the heaviest particles known to science. The results are described in a new paper from my colleagues and me in the ATLAS collaboration, published today in Nature.

Quantum entanglement between a top quark and its antimatter counterpart was observed by the ATLAS and CMS teams at CERN.