Presenting a variety of topics that are only briefly touched on in other texts, this book provides a thorough introduction to the techniques of field theory. Covering Feynman diagrams and path integrals, the author emphasizes the path integral approach, the Wilsonian approach to renormalization, and the physics of non-abelian gauge theory. It provides a thorough treatment of quark confinement and chiral symmetry breaking, topics not usually covered in other texts at this level. The Standard Model of particle physics is discussed in detail. Connections with condensed matter physics are explored, and there is a brief, but detailed, treatment of non-perturbative semi-classical methods. Ideal for graduate students in high energy physics and condensed matter physics, the book contains many problems, which help students practise the key techniques of quantum field theory.They are useful because the answers to correctly defined quantum field theory are universal: they do not depend on the cut-off scheme. ... RG approach to field theory is that it allows us to discuss physics below the Planck energy scale without getting involved in the conceptual intricacies of quantum gravity. ... The thermodynamics of a system is characterized by a free energy per unit volume, F( T , P, H, .

Title | : | Modern Quantum Field Theory |

Author | : | Tom Banks |

Publisher | : | Cambridge University Press - 2008-09-18 |

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