When quantum particles work together, they can produce signals far stronger than any one particle could generate alone. This collective phenomenon, called superradiance, is a powerful example of ...

A team of physicists has shown that quantum-encrypted keys can travel 75 miles through the same fiber-optic cable already carrying ordinary internet traffic, removing one of the biggest practical ...

The encryption protecting communications against criminal and nation-state snooping is under threat. As private industry and governments get closer to building useful quantum computers, the algorithms ...

Quantum communication has quietly crossed a new threshold, with researchers now showing that fragile quantum states can be sent from the ground to orbit in a way that looks increasingly practical for ...