Schrödinger’s anthill: Quantum entanglement detected inside a centimeter-sized strange metal

Schrödinger’s anthill: Quantum entanglement detected inside a centimeter-sized strange metal

A strange metal can fit in your hand, yet still behave in ways that seem to belong to a far smaller world. In a new experiment, physicists found direct evidence that a centimeter-sized crystal hosts extensive quantum entanglement. This is the kind of collective linkage more often discussed for isolated atoms or photons than for bulk matter. That matters because strange metals have become one of condensed matter physics’ most stubborn mysteries. …