Explainer: What Is a Quantum Computer?

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

MIT Technology Review
Jan 31 · 6 min read
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 just a click away.

MIT Technology Review

Written by

Reporting on important technologies and innovators since 1899

MIT Technology Review

MIT Technology Review

Welcome to a place where words matter. On Medium, smart voices and original ideas take center stage - with no ads in sight. Watch
Follow all the topics you care about, and we’ll deliver the best stories for you to your homepage and inbox. Explore
Get unlimited access to the best stories on Medium — and support writers while you’re at it. Just $5/month. Upgrade