Radiology: Artificial Intelligence

Following the recent award of the Nobel Prize in Physics to Aspect, Clauser, and Zeilinger for their work in quantum mechanics, the journal's October 2022 tweet chat introduced the cutting-edge world of Quantum Machine Learning (QML) and its potential in healthcare. How is QML different from "classical" machine learning? First, to describe the basics of quantum computing, we'll use an analogy from MRI physics with the Bloch sphere (below). In classical computing (a), a binary digit ("bit") has a value of 0 (up) or 1 (down). In quantum computing (b), each quantum bit ("qubit") can hold an infinite number of values between 0 and 1.