Three problems that are out of reach for conventional computers have been cracked by quantum computers and show how important ...

The company has drawn governments, a major chipmaker, and the Pentagon into an effort to control fragile photons and build a useful quantum machine. It aims to be the first.

To predict when we’ll have a truly useful quantum computer, we need to know precisely what one is. Columnist Karmela Padavic-Callaghan finds that’s harder to pin down than you might think ...

Amazon AI executive Peter DeSantis told CNBC that in five-to-seven years, "we're going to start to see the first commercially useful small-scale quantum computers." DeSantis leads a new Amazon ...

To this day, we have yet to see a quantum computer conclusively perform a single useful task. Existing machines are simply too small and error-ridden to solve commercially relevant problems. That hasn ...