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 10: Getting to Know Algorithms with Aqua

So, we have finally come to the part where we will slow down a bit on coding our own circuits and instead take a look at what is arguably the most interesting part of Qiskit®—Qiskit Aqua.

As we were building the various Grover implementations in the last chapter, we saw how that seemingly simple algorithm turned into an unwieldy beast of coding when you implemented it in Qiskit Terra. If you are building a hybrid classical/quantum program (where you just want to use the Grover search function), it would be vastly simpler if you could just import and run a Qiskit® implementation of it, or other quantum algorithms, and not have to code from scratch.

So, with a fanfare and a drum roll, we now take an initial look at a couple of Qiskit Aqua algorithms (Grover and Shor) that you can use out of the box.

In this chapter, we will cover the following recipes:

  • Running Grover's algorithm as an Aqua function...