The weird and wonderful world of the qubit

In this section we will introduce you to the qubit. A qubit (pronounced “cue-bit” and short for quantum bit) is the physical carrier of quantum information; in other words, it is the quantum version of a bit, and quantum computing revolves around it.

By the end of this section you will have a basic understanding of

  • The quantum bit (qubit)

  • Creating superpositions

  • Introducing qubit phase

  • Advanced single-qubit gates

  • The Bloch Sphere

  • Decoherence