---
title: "bloch sphere"
source: https://www.jemoka.com/posts/kbhbloch_sphere/
---

The bloch sphere is a sphere encoding all possible probabilities of a qubit shared between two axis, \(|u\big&gt;\) and \(|d\big&gt;\).
You will notice that its a unit sphere, in which any magnitude has size \(1\). Hence, probabilities would result as projected onto each of the directions.
