Quantum Computing for Developers
A Java-based introduction
Johan Vos
  • MEAP began April 2019
  • Publication in Spring 2020 (estimated)
  • ISBN 9781617296321
  • 300 pages (estimated)
  • printed in black & white

Want to learn about QC, while being able to pass through page 1? Read this book!

Carlos Aya
Quantum computing is on the horizon, ready to impact everything from scientific research to encryption and security. But you don’t need a physics degree to get started in quantum computing. Quantum Computing for Developers shows you how to leverage your existing Java skills into writing your first quantum software so you’re ready for the revolution.
Table of Contents detailed table of contents

Part 1: Quantum Computing introductions

1 Evolution/Revolution/Hype?

1.1 Expectation Management

1.1.1 Hardware

1.1.2 Software

1.1.3 Algorithms

1.1.4 Why start with quantum computing today?

1.2 The disruptive parts of Quantum Computing, getting closer to nature

1.2.1 Evolutions in classical computers

1.2.2 Revolution in quantum computers

1.2.3 Quantum Physics

1.3 Hybrid Computing

1.4 Abstracting software for Quantum Computers

2 Hello World, Quantum Computing

2.1 Introducing Strange

2.2 Running a first demo with Strange

2.2.1 Inspecting the code for HelloStrange

2.2.2 Java API’s versus implementations

2.3 Obtaining and installing the Strange code

2.3.1 Downloading the code

2.3.2 A first look into the library

2.4 Next steps

3 Qubits and Quantum Gates, the basic units in Quantum Computing

3.1 Classic bit versus Qubit

3.2 Qubit notations

3.2.1 One qubit

3.2.2 Multiple qubits

3.3 Gates: Manipulating and measuring qubits

3.4 A very first [quantum] gate: the Pauli-X gate

3.5 Playing with Qubits in Strange

3.5.1 QuantumExecutionEnvironment

3.5.2 Program

3.5.3 Steps and Gates

3.5.4 Results

3.6 Visualisation of Quantum circuits

3.7 What did we learn?

Part 2: Fundamental concepts and how they relate to code

4 Superposition

4.1 What is superposition

4.2 The state of a quantum system as a probability vector

4.3 Introducing matrix gate operations

4.3.1 The Pauli-X gate as a matrix

4.3.2 Applying the Pauli-X gate to a qubit in superposition

4.3.2 A matrix that works for all gates

4.4 The Hadamard Gate, the gate to superposition

4.5 Java code using the Hadamard gate

4.6 Summary

5 Entanglement

6 Hybrid Computing

Part 3: quantum algorithms and code

7 Our Hello World explained

8 Deutsch-jozsa algorithm

9 Shor’s algorithm

10 Grover Search

11 Create your own algorithms


Appendix A: Installing Strange

A.1 Requirements

A.2 Obtaining and installing the demo code

A.3 The HelloStrange program

A.3.1 Running the program

Appendix B: Linear Algebra

About the Technology

Whilst quantum hardware is still on the edge of development, the underlying principles for writing quantum software are well-established. Right now developers can utilize quantum simulators, like Java-based Strange, to try quantum experiments on any platform that runs the JVM. Quantum computers store and process data in quantum bits, or ‘qubits’, which can represent more complex state than standard bits. Quantum systems promise to be significantly faster for certain types of algorithms, especially in numerical computing areas such as deep learning, scientific disciplines, and cryptography.

About the book

Quantum computing is on the horizon, showing incredible promise for accelerating AI and scientific research. Delivering on these promises requires new hardware as well as a new approach to writing software that takes into account the core ideas of quantum mechanics. Quantum Computing for Developers will make sure you’re prepared to start programming when quantum supercomputing becomes a practical reality for production systems.

Rather than a hardware manual or academic theory guide, this book is focused on practical implementations of quantum computing algorithms. Using Strange, a Java-based quantum computer simulator, you’ll go hands-on with quantum computing’s core components including qubits and quantum gates as you write your very first quantum code. By the end of the book you’ll be ahead of the game with the skills to create quantum algorithms using standard Java and your favorite IDE and build tools.

What's inside

  • An introduction to the core concepts of quantum computing
  • Qubits and quantum gates
  • Superposition, entanglement, and hybrid computing
  • Quantum algorithms including Shor’s, Deutsch-jozsa, and Grover’s search

About the reader

For Java developers at all levels who want an early start in quantum computing. No advanced math knowledge required.

About the author

Johan Vos is a cofounder of Gluon, a Java technology company that aims to offer Java solutions for all platforms including desktop, embedded, and mobile apps, and connect them to the cloud. He is a Java Champion and holds an MSc in Mining Engineering and a PhD in Applied Physics.

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