This is the third post in a series on quantum computing, which began with the following: By design, a quantum computer is a device that executes quantum computations. These quantum computations utilize quantum mechanical principles to encode and operate on inputs and outputs. There are two main types of quantum computers based on the data unit: discrete-based and continuous-based. Discrete-based quantum computers use a discrete unit of data with quantum properties; most use qubits on which operations are performed. In contrast, continuous-based quantum computers utilize observable quantities with continuous intervals to define the system's state. We will focus on discrete/digital quantum systems as this is the most common model for which many algorithms have already been developed. Like classical computers, ...Read More