The Qubit Phase

The quantum world is not a disk

This post is part of the book: Hands-On Quantum Machine Learning With Python.

“There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy.”

(Hamlet (1.5.167–8), Hamlet to Horatio)

Adapted from a 1789 painting by Kaufmann, public domain

Do you remember our introductory example of the quantum coin? Coins have two states, heads or…