Book Image

A Practical Guide to Quantum Machine Learning and Quantum Optimization

By : Elías F. Combarro, Samuel González-Castillo
4.5 (2)
Book Image

A Practical Guide to Quantum Machine Learning and Quantum Optimization

4.5 (2)
By: Elías F. Combarro, Samuel González-Castillo

Overview of this book

This book provides deep coverage of modern quantum algorithms that can be used to solve real-world problems. You’ll be introduced to quantum computing using a hands-on approach with minimal prerequisites. You’ll discover many algorithms, tools, and methods to model optimization problems with the QUBO and Ising formalisms, and you will find out how to solve optimization problems with quantum annealing, QAOA, Grover Adaptive Search (GAS), and VQE. This book also shows you how to train quantum machine learning models, such as quantum support vector machines, quantum neural networks, and quantum generative adversarial networks. The book takes a straightforward path to help you learn about quantum algorithms, illustrating them with code that’s ready to be run on quantum simulators and actual quantum computers. You’ll also learn how to utilize programming frameworks such as IBM’s Qiskit, Xanadu’s PennyLane, and D-Wave’s Leap. Through reading this book, you will not only build a solid foundation of the fundamentals of quantum computing, but you will also become familiar with a wide variety of modern quantum algorithms. Moreover, this book will give you the programming skills that will enable you to start applying quantum methods to solve practical problems right away.
Table of Contents (27 chapters)
1
Part I: I, for One, Welcome our New Quantum Overlords
4
Part II: When Time is Gold: Tools for Quantum Optimization
10
Part III: A Match Made in Heaven: Quantum Machine Learning
16
Part IV: Afterword and Appendices
17
Chapter 13: Afterword: The Future of Quantum Computing
19
Bibliography
20
Index
Appendix A: Complex Numbers
Appendix E: Production Notes

Summary

In this chapter, you have learned about QAOA, one of the most popular quantum algorithms used to solve optimization problems with gate-based quantum computers. You now know that QAOA is derived as a discretization of quantum annealing and that it is implemented as a hybrid method that uses both a classical and a quantum computer to achieve its goal.

You also understand how to construct circuits for all the operations needed in the quantum part of the algorithm. In particular, you know how to use these circuits to estimate expectation values in an efficient way.

You have also mastered the tools that Qiskit provides in order to implement QAOA instances and to run them on both quantum simulators and quantum computers. You even know how to accelerate the process of running your code on quantum devices by using Qiskit Runtime. And, should you need to use QAOA with PennyLane, you also know how to do it with the help of some predefined utilities and PennyLane capabilities for automatic...