Oxford scientists create rare quantum effect 100 times faster than expected

Oxford researchers demonstrated quadsqueezing in a single trapped ion using two controlled forces and non-commuting interactions.

The fourth-order quantum effect emerged more than 100 times faster than conventional predictions.

The work, reported in Nature Physics, suggests a new way to engineer high-order quantum interactions that were previously too weak to observe.

Potential applications include ultra-sensitive sensors, trapped-ion quantum computing, and simulations of complex physics, including gravitational sensing.