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

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

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

Netherlands-based QuiX Quantum has delivered Carina, the world's first universal photonic quantum computer designed for customer deployment. Unlike most quantum machines, Carina operates at room ...

Bitcoin’s security relies on elliptic curve cryptography, a one-way mathematical function that makes deriving a private key from a public key effectively impossible for traditional computers. Shor’s ...

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

Governments and technology companies are fueling an urgent, high-stakes race to develop quantum power, which promises to revolutionize- and potentially compromise - global security Quantum computing ...

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.