ATLAS Collaboration

Stories

LHC search narrows hiding places for quantum black holes

As of September 2026: Set world-best quantum black hole limit of 9.4 TeV in Run 3 data

The Large Hadron Collider's most thorough search for microscopic black holes came up empty. That absence is a result: it rules out quantum black holes up to about 12 TeV (tera-electron volts) and, with them, most theories of extra spatial dimensions.

Updated Sep 23

CERN finds strong evidence of quantum entanglement in Z bosons from Higgs decays

New Capabilities

As of September 2026: One of two general-purpose detectors at the LHC

Physicists at CERN have found strong evidence that Z bosons, the particles that carry the weak nuclear force, become quantum entangled when produced in Higgs boson decays. The result, based on proton collisions at 13 trillion electron volts, shows that Einstein's "spooky action at a distance" persists at the most extreme energies ever tested in a laboratory.

Updated Sep 20