This textbook presents a detailed introduction to the general concepts of quantum field theory, with special emphasis on principal aspects of functional methods

Starting from introductory quantum and classical mechanics, this text develops the quantum field theories that make up the `Standard Model' of elementary proces

One of the most challenging problems of contemporary theoretical physics is the mathematically rigorous construction of a theory which describes gravitation and

A comprehensive, graduate-level textbook introducing quantum field theory, giving equal emphasis to operator and path integral formalisms.

A concise, beginner-friendly introduction to quantum field theory Quantum field theory is a powerful framework that extends quantum mechanics in ways that are e