The power of quantum computing

Robert Sutor

There is a one-to-one relationship between the number of transistors a microprocessor has and its processing power. The potential power of a classical computer doubles every time you double the number of transistors.

In a quantum system, the rough equivalent of a transistor is something called a quantum bit, or a qubit. But there’s a big difference. The potential power of a quantum computer doubles every time you add one additional qubit.

IBM Q 16 qubit quantum computer from 2017

Learn more about quantum computing and IBM Q at

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