Philip Ball explores the latest developments in the quantum-computing industry, part of the International Year of Quantum Science and Technology coverage.
Quantum computing is booming, with around 400 competing companies and various qubit platforms. The industry is rapidly evolving, with different measures of merit.
"I'd be amazed if quantum computing produces anything technologically useful in ten years, twenty years, even longer."
University of Oxford physicist David Deutsch, considered the father of quantum computing theory, made this statement in 2004, adding "I've been amazed before."
The quantum-computing industry is developing rapidly, with many companies and platforms emerging.
Author's summary: Quantum computing is rapidly evolving with 400 companies.