The Quantum World

Quantum physics has, on the one hand, drastically changed our theoretical description of the physical world and has, on the other hand, revolutionized everyday life, by allowing us to build lasers, atomic clocks used in GPS, and semiconductor-based devices such as laptop computers and smartphones. The object of this book is to give a self-contained introduction to both aspects. It contains a detailed account of the foundational principles: superposition, entanglement, quantum non-locality, decoherence and measurement theory, and of some selected applications: quantum cryptography and quantum computers, cold atoms, light emitting and laser diodes, and atomic clocks. The book is aimed at a general audience and the only prerequisite is a high-school background in mathematics.

Sample Chapter(s)
Foreword (231 KB)
Chapter 1: An Inconvenient Principle (354 KB)

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Contents:An Inconvenient PrincipleSecure CommunicationsEinstein, Bohr, and BellAtoms, Light, and LasersCold AtomsThe Kingdom of SemiconductorsRelativistic Quantum PhysicsTowards a Quantum Computer?The Environment is WatchingInterpretations
Readership: Students and the general public interested in the foundational principles, practical applications and the newest discoveries in quantum physics.