Changing Basis, Uncertainty Principle, and Bra–Ket Operations

In this chapter, we learn how to change the basis. A vector has different representations in different bases. Basis changing is a very important concept in quantum computing. For example, in Quantum Teleportation, which you will learn later, measurements are performed on different bases. We will also learn some important bra–ket operations and experience the power of bra–ket notation in simplifying equations.