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 ...

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.

Quantum computing's biggest challenge isn't speed - it's proving results are correct. Here's why verification matters more ...

The new startup raised $300 million co-led by ARCH Venture Partners, Spark Capital, and Khosla Ventures.

Advances in recent years suggest we are entering the Quantum Frontier Era. National security, science, economic competitiveness, and cybersecurity will all feel the impact.

German company SAXON Q has built a high-powered “quantum computer” that doesn’t need a ...

Here's how they stack up -- and whether either stock deserves a spot in your portfolio.

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

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

Neural networks have transformed how machines find patterns in data, from recognizing faces in photos to predicting the ...

A quantum problem once described as impossible for classical computers has now been solved using relatively modest hardware.

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 ...