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Lecture Notes

Introduction. What is a classical field theory?
updated 7/22/15
The Klein-Gordon field and its variational principle.
updated 8/10/15
Symmetries and Conservation Laws.
updated 8/11/15
Electromagnetism: The simplest gauge theory.
updated 8/1/15
Scalar electrodynamics. The principle of local gauge invariance. Lower-degree conservation laws.
updated 8/10/15
Spontaneous Symmetry Breaking.  Goldstone's Theorem.  The Higgs Mechanism.
updated 10/28/15