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

The race to build larger and more powerful quantum computers has mostly focused on ...

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.

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

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 ...

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

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 ...

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

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

Imagine shining a flashlight across a dark room. You can predict exactly what the light will do: travel in a straight line from one point to another. That seems obvious, because in the world we see ...