Quantum Field Theory by Harald Fritzsch

Quantum Field Theory

byHarald Fritzsch

Kobo ebook | March 9, 2017

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The matter in our universe is composed of electrons and quarks. The dynamics of electrons and quarks is described by the Standard Model of particle physics, which is based on quantum field theories. The general framework of quantum field theories is described in this book. After the classical mechanics and the relativistic mechanics the details of classical scalar fields, of electrodynamics and of quantum mechanics are discussed. Then the quantization of scalar fields, of spinor fields and of vector fields is described.

The basic interactions are described by gauge theories. These theories are discussed in detail, in particular the gauge theories of quantum electrodynamics (QED) and of quantum chromodynamics (QCD), based on the gauge group SU(3). In both theories the gauge bosons, the photon and the gluons, have no mass. The gauge theory of the electroweak interactions, based on the gauge group SU(2) x U(1), describes both the electromagnetic and the weak interactions. The weak force is generated by the exchange of the weak bosons. They have a large mass, and one believes that these masses are generated by a spontaneous breaking of the gauge symmetry.

It might be that the strong and the electroweak interactions are unified at very high energies ("Grand Unification"). The gauge groups SU(3) and SU(2) x U(1) must be subgroups of a big gauge group, describing the Grand Unification. Two such theories are discussed, based on the gauge groups SU(5) and SO(10).

Contents:

  • Introduction
  • Mechanics
  • Classical Fields
  • Quantum Theory
  • Group Theory
  • Free Scalar Fields
  • Free Spinor Fields
  • Free Vector Fields
  • Perturbation Theory
  • Quantum Electrodynamics
  • Symmetry
  • Gauge Theories
  • Quantum Chromodynamics
  • Spontaneous Symmetry Breaking
  • Electroweak Interactions
  • Grand Unification

Readership: Graduate students and researchers interested in quantum field theory and its application in Standard Model and Grand Unification.

Title:Quantum Field TheoryFormat:Kobo ebookPublished:March 9, 2017Publisher:World Scientific Publishing CompanyLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:9813141743

ISBN - 13:9789813141742

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