Now some math

Qubits can be represented using an equation, which is what we will do.

This equation is very useful when working with the Bloch sphere, which is a great tool for visualizing the state of a qubit.

Now let me explain what is going on. The |0> and |1> are just the states of 0 and 1, using a notation commonly used in quantum equations called the bra-ket notation. e is Euler’s number and i is the imaginary unit .