Introduction to Quantum Physics and Information Processing

Contents

Preface ix

List of Figures xiii

List of Tables xvii

List of Boxes xix

List of Symbols and Notations xxi

About the Author xxiii

I Preliminaries 1

1 Introduction 3

1.1 Bits and Qubits . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 Properties of Qubits . . . . . . . . . . . . . . . . . . . . . . . 9

1.3 Practical Considerations . . . . . . . . . . . . . . . . . . . . 11

1.4 References for Further Reading . . . . . . . . . . . . . . . . . 13

2 A Simple Quantum System 15

2.1 The Stern–Gerlach Experiment . . . . . . . . . . . . . . . . . 15

2.2 Quantum State: Basis States . . . . . . . . . . . . . . . . . . 18

2.2.1 Superpositions . . . . . .