Book Image

Learn Quantum Computing with Python and IBM Quantum Experience

By : Robert Loredo
Book Image

Learn Quantum Computing with Python and IBM Quantum Experience

By: Robert Loredo

Overview of this book

IBM Quantum Experience is a platform that enables developers to learn the basics of quantum computing by allowing them to run experiments on a quantum computing simulator and a real quantum computer. This book will explain the basic principles of quantum mechanics, the principles involved in quantum computing, and the implementation of quantum algorithms and experiments on IBM's quantum processors. You will start working with simple programs that illustrate quantum computing principles and slowly work your way up to more complex programs and algorithms that leverage quantum computing. As you build on your knowledge, you’ll understand the functionality of IBM Quantum Experience and the various resources it offers. Furthermore, you’ll not only learn the differences between the various quantum computers but also the various simulators available. Later, you’ll explore the basics of quantum computing, quantum volume, and a few basic algorithms, all while optimally using the resources available on IBM Quantum Experience. By the end of this book, you'll learn how to build quantum programs on your own and have gained practical quantum computing skills that you can apply to your business.
Table of Contents (21 chapters)
Section 1: Tour of the IBM Quantum Experience (QX)
Section 2: Basics of Quantum Computing
Section 3: Algorithms, Noise, and Other Strange Things in Quantum World
Appendix A: Resources

Creating your first classical/quantum application (Simon's)

In this section, we will incorporate a lot of what we have learned so far to create a classical/quantum application to solve a problem using Simon's algorithm. The problem is provided in the next section.

Stating Simon's problem

Consider a two-to-one function that connects the results of two input values by XORing each input with a secret string, s. This can be represented as .

We can define this problem using a truth table expression and constructing an Oracle and then leverage Simon's algorithm to solve the problem as 0110. Now, let's implement Simon's algorithm to solve the value, s.

Implementing Simon's algorithm

Simon's algorithm allows us to search for the secret string that connects the results via a two-to-many function. In this example, the values are XORed with s, where s will be set to 11. Let's work on solving this using Qiskit Aqua's built-in components...