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

IBM and collaborators say their quantum computers outperform all known classical algorithms for three distinct tasks, but ...

Big Four firm Ernst and Young announced it now has a quantum computer physically sitting in its Toronto office.

There are many algorithms for which it has been mathematically proven that a quantum computer can generate results that would ...

This article is part of a package on the future of quantum computing. Read about the most promising applications of these machines here and see an illustrated field guide to qubits here. Inside a ...

If the goal is to make quantum systems act like powerful classical machines, then today’s quantum computers may be too ...

Quantum advantage? Sure sounds like AT&T is getting it from a D-Wave partnership. Maybe not exactly quantum supremacy just ...

The only snag was that “Shor’s algorithm”, as it is now known, required something that at the time only existed on university ...

IBM and research partners show how quantum calculations can be checked for accuracy in real time in three new papers.

Quantum computing is still in its infancy and requires massive, long-term investments — which means investing in quantum is ...

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 ...

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.