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

Quantum computers could soon be able to solve genuinely useful mathematical problems faster than classical computers, claims quantum computing firm Quantinuum. It would be the first example of these ...

The race to build larger and more powerful quantum computers has mostly focused on engineering: adding more qubits, reducing noise, and keeping fragile quantum states alive. However, a new theoretical ...

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 ...

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 ...

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

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 ...

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.