In modern physics, the classical vacuum of tranquil nothingness has been replaced by a quantum vacuum with fluctuations of measurable consequence. In The Quantum Vacuum, Peter Milonni describes the concept of the vacuum in quantum physics with an emphasis on quantum electrodynamics. He elucidates in depth and detail the role of the vacuum electromagnetic field in spontaneous emission, the Lamb shift, van der Waals, and Casimir forces, and a variety of other phenomena, some of which are of technological as well as purely scientific importance. This informative text also provides an introduction based on fundamental vacuum processes to the ideas of relativistic quantum electrodynamics and quantum field theory, including renormalization and Feynman diagrams. Experimental as well as theoreticalaspects of the quantum vacuum are described, and in most cases details of mathematical derivations are included.

Zero-Point Energy in Early Quantum Theory. The Electromagnetic Vacuum. Some QED Vacuum Effects. Nonrelativistic Theory of Atoms in Vacuum. Interlude: Radiation Reaction. The Vacuum in Quantum Optics. Casimirand van der Waals Forces: Prelude. Casimir and van der Waals Forces: Elaborations. The Dirac Equation. Introduction to Quantum Field Theory. Self-Energies and Renormalization. Feynman Diagrams. Appendices: Oscillator Equation and Absorption Rate. Force onan Atom in a Thermal Field. Derivation of Equation (2.28). Electric Field of Radiation Reaction. Photodetection and Normal Ordering. Transverse and Longitudinal Delta Functions. Lorentz-Invariant Measure. Index.