Hui-Chen Yang

Usually acceleration destroys quantum entanglement—the invisible bond between particles. But in a new study, physicists found a four-particle state where entanglement freezes entirely at its maximum level. This challenges old notions and paves the way for ultra-stable quantum links in space.

Physicists tested a special entangled state of four particles near a black hole. Usually, temperature and gravity destroy any quantum bonds, but here the entanglement remained maximal, as if frozen. This is the first case where strong gravity does not suppress but preserves a quantum link.