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 7: Simulating Quantum Computers with Aer

So far, we have mainly been running our quantum programs on our local QASM simulator, which out of the box simulates a universal error-correcting quantum computer—the type of machine that the quantum computing world expects, or at least hopes, will be a reality within the next few years.

But these amazing machines are not available yet, so in this chapter, we will explore quantum simulators both locally with Qiskit Aer and in the cloud with IBM Quantum® simulators. We will understand how to run your quantum circuits on these simulated perfect backends.

However, you can also use Qiskit Aer to simulate today's Noisy Intermediate-Scale Quantum (NISQ) computers by setting up noise profiles for the simulator to emulate the real IBM Quantum® hardware, with gate errors and noise. So, we will take a look at that as well.

We will also look at two other local simulator types and what you can use them for: the unitary...