A Modern Introduction To Quantum Field Theory

Quantum field theory has undergone extraordinary developments in the last few decades and permeates many branches of modern research such as particle physics, cosmology, condensed matter, statistical mechanics and critical phenomena. This book introduces the reader to the modern developments in a manner which assumes no previous knowledge of quantum field theory, and makes it readily accessible from the advanced undergraduate level upwards. - ;The importance and the beauty of modern quantum field theory resides in the power and variety of its methods and ideas, which find application in domain.