Tag quantum field theory and the standard model

Quantum Field Theory of Non-equilibrium States

The book “Quantum Field Theory of Non-equilibrium States” offers two ways of learning the way to study non-equilibrium states of many-body systems: the mathematical, canonical way, and an intuitive way using Feynman diagrams. The latter provides a simple introduction to the powerful functional methods of quantum field theory. The usefulness of Feynman diagrams, even in a classical context, is shown…