Quantum sensors beat hyped computers to the real world by measuring invisible fields

Quantum sensors are moving from lab demos toward real-world use by detecting signals too faint for conventional devices.

New examples include room-temperature magnetic sensing at NIST, GPS backup navigation with atom interferometers, and noise reduction for LIGO.

These tools could improve monitoring of brain and fetal heart activity, help when GPS is unavailable, and support precision physics experiments.

Researchers are also working to make quantum sensors more rugged and reliable for everyday environments.