Scalar fields -- Relativistic fields -- Canonical formalism -- Electromagnetic field -- Dirac equation -- The dirac field -- Dynamics of interacting fields -- Feynman graphs -- Vacuum correlation functions -- Quantum electrodynamics -- Processes in quantum electrodynamics -- Perturbative renormalization -- Path integrals -- Broken symmetry -- Renormalization -- The Gaussian fixed point -- In two dimensions -- Topological excitations.
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"A new, updated and enhanced edition of the classic work, which was welcomed for its general approach and self-sustaining organization of the chapters. Written by a highly respected textbook writer and researcher, this book has a more general scope and adopts a more practical approach than other books. It includes applications of condensed matter physics, first developing traditional concepts, including Feynman graphs, before moving on to such key topics as functional integrals, statistical mechanics and Wilson's renormalization group. The author takes care to explain the connection between the latter and conventional perturbative renormalization. Due to the rapid advance and increase in importance of low dimensional systems, this second edition fills a gap in the market with its added discussions of low dimensional systems, including one-dimensional conductors."--Publisher's website.