Book Image

Quantum Computing in Practice with Qiskit® and IBM Quantum Experience®

By : Hassi Norlen
5 (1)
Book Image

Quantum Computing in Practice with Qiskit® and IBM Quantum Experience®

5 (1)
By: Hassi Norlen

Overview of this book

IBM Quantum Experience® is a leading platform for programming quantum computers and implementing quantum solutions directly on the cloud. This book will help you get up to speed with programming quantum computers and provide solutions to the most common problems and challenges. You’ll start with a high-level overview of IBM Quantum Experience® and Qiskit®, where you will perform the installation while writing some basic quantum programs. This introduction puts less emphasis on the theoretical framework and more emphasis on recent developments such as Shor’s algorithm and Grover’s algorithm. Next, you’ll delve into Qiskit®, a quantum information science toolkit, and its constituent packages such as Terra, Aer, Ignis, and Aqua. You’ll cover these packages in detail, exploring their benefits and use cases. Later, you’ll discover various quantum gates that Qiskit® offers and even deconstruct a quantum program with their help, before going on to compare Noisy Intermediate-Scale Quantum (NISQ) and Universal Fault-Tolerant quantum computing using simulators and actual hardware. Finally, you’ll explore quantum algorithms and understand how they differ from classical algorithms, along with learning how to use pre-packaged algorithms in Qiskit® Aqua. By the end of this quantum computing book, you’ll be able to build and execute your own quantum programs using IBM Quantum Experience® and Qiskit® with Python.
Table of Contents (12 chapters)

Chapter 4: Starting at the Ground Level with Terra

After our brief exploration of the IBM Quantum Experience® composer, and installation of IBM's Qiskit®, we are now ready to start writing quantum programs with Qiskit®. We will let go of the user interface, expanding our quantum computing journey into Python – one of the world's most popular and widespread scientific programming languages.

This chapter covers the basic requirements for building a quantum circuit with Qiskit®. We will walk through the making of a few minimalistic quantum programs that run on a local Qiskit Aer simulator and that display the results of the program in numeric as well as diagrammatic form. We will then take the leap and run the programs on actual IBM Quantum® hardware.

The theme of this chapter is quantum coin tossing, based on the rudimentary quantum program that we built in IBM Quantum Experience®. These are arguably the simplest meaningful quantum...