The Quantum World of Ultra-Cold Atoms and Light is a trilogy, which presents the quantum optics way of thinking and its applications to quantum devices. This book Foundations of Quantum Optics provides an introductory text on the theoretical techniques of quantum optics, containing the elements of what one needs to teach, learn, and "think" about quantum optics. There is a particular emphasis on the classical and quantum stochastic methods which have come to dominate the field.

Book II will cover applications to quantum devices, such as quantum computers and simulators, and will include the more advanced techniques necessary to describe non-classical light fields. Book III will cover the field of ultra-cold atoms, for which the quantum-optical paradigm has proved to be highly applicable for quantitative work.