Explainer: What Is a Quantum Computer?

How it works, why it’s so powerful, and where it’s likely to be most useful first

Photo: Justin Fantl, courtesy of Rigetti Computing

By Martin Giles

A quantum computer harnesses some of the almost-mystical phenomena of quantum mechanics to deliver huge leaps forward in processing power. Quantum machines promise to outstrip even the most capable of today’s — and…

This story is for Medium members.

Medium curates expert stories from leading publishers exclusively for members (with no ads!). Register for a free account to begin your member preview.

Already have an account? Sign in

Join Medium to read this story.

Sign up with a free account to read this ad-free selection curated from MIT Technology Review.
Already have an account? Sign in