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Introduction To Quantum Field Theory
This book covers the following topics: Path integrals and quantum mechanics, the classical limit, Continuous systems, Field theory, Correlation function, Euclidean Theory, Tunneling and instalatons, Perturbation theory, Feynman diagrams, Fermionic harmonic oscillator states, Path integrals for fermions and Feynman diagrams for fermions.
Author(s): B. de Wit
159 Pages 
An Introduction to Quantum Field Theory by University of Manchester
This note explains Classical field theory, Quantum field theory, Interacting scalar fields and perturbation theory.
Author(s): University of Manchester
48 Pages
Quantum Theory by James Sparks
This note describes the following topics: Classical particles and waves, Physical background and wave-particle duality, Wave mechanics, The Born interpretation, The harmonic oscillator, The mathematical structure of quantum theory, Statistical aspects of quantum theory, Angular momentum, The hydrogen atom.
Author(s): James Sparks
82 Pages
Introduction to Quantum Field Theory by Marina von Steinkirch
This book is divided into two parts. The first part is the old-school way of learning quantum field theory. The second part is dedicated to Topological Field Theories. Topics covered includes: Spin Zero, Fields with Spin, Non-Abelian Field Theories, Quantum Electrodynamics, Electroweak Theory, Quantum Chromodynamics, Renormalization, Sigma Model, Topological Field Theories.
Author(s): Marina von Steinkirch
121 Pages
A Very Short Introduction to Quantum Field Theory
This note covers the following topics: Second Quantization and Relativistic Fields, The Interaction Picture and the S-Matrix, The Trouble with Loops, Cross Sections and Decay Rates, The Dirac Equation, The Photon Field, Quantum Electrodynamics.
Author(s): A. W. Stetz
145 Pages