Today’s quantum computing hardware is severely limited in what it can do by errors that are difficult to avoid. There can be problems with everything from setting the initial state of a qubit to ...

For the first time, a quantum computer has improved its results by repeatedly fixing its own mistakes midcalculation with a technique called quantum error correction ...

Quantum computing is expected to leave classical computing in the dust when it comes to solving some of the world’s most fiendishly difficult problems. The best quantum machines today have one major ...

Astronaut John Glenn was wary about trusting a computer. It was 1962, early in the computer age, and a room-sized machine had calculated the flight path for his upcoming orbit of Earth — the first for ...

Thomas Stace receives funding from the Australian Research Council through a Future Fellowship and the Centre of Excellence in Engineered Quantum Systems. Computing power has grown exponentially over ...

In the second of a two-part article, Philip Ball looks at the challenges of error correction to build truly useful quantum computing; how algorithms will need to be ...