Chapter

Examples of Lagrangians, or how to write down a theory

Tom Lancaster and Stephen J. Blundell

in Quantum Field Theory for the Gifted Amateur

Published in print April 2014 | ISBN: 9780199699322
Published online June 2014 | e-ISBN: 9780191779435 | DOI: https://dx.doi.org/10.1093/acprof:oso/9780199699322.003.0008
Examples of Lagrangians, or how to write down a theory

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The chapter presents a set of example Lagrangians and show how they work. After reading this chapter the reader should have a good working knowledge of the simplest examples of quantum field theories.

Keywords: Lagrangian density; scalar field theory; complex scalar field theory; phi-fourth theory

Chapter.  3022 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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