Researchers in the US have demonstrated how quantum entanglement could be used to detect optical signals from astronomical ...

A new room-temperature quantum device developed at Stanford uses twisted light and advanced materials to link photons and ...

Create a Physics World account to get access to all available digital issues of the monthly magazine. Your Physics World ...

Rydberg atoms are atoms with one or more outer electrons excited to very high energy levels, which interact very strongly ...

Scientists built a quantum gate linking four-state photons, showing complex quantum tasks can be done with fewer steps using qudits.

To measure the passing of time, every clock works by counting oscillations of some reference frequency—whether it's the swinging pendulum of a clocktower, or the vibrations of an electrified quartz ...

Add Yahoo as a preferred source to see more of our stories on Google. MIT and Harvard scientists have built the world’s most precise optical clock, surpassing the quantum limit with entangled atoms ...

Every second of modern life runs on precision — from GPS navigation to the time signals that keep the internet in sync. But scientists at MIT and Harvard have just taken precision to an entirely new ...