Researchers have switched an intrinsic property of electrons from an excited state to a relaxed state on demand using a device that served as a microwave “tuning fork.” The team’s findings could also ...

The researchers discovered that feedback control using the second resonance of the probe when near the surface provides higher sensitivity than that using the first, free-air resonance. “This ...

Superfluid helium represents a fascinating state of matter, manifesting unique quantum mechanical behaviours at ultralow temperatures, including frictionless flow and the absence of viscosity. In ...