Spontaneous breakdown of symmetry and the Goldstone theorem
The following sections are included:
Introduction
Invariance and symmetry
Irreducible representations of the symmetry group
Symmetry and the vacuum manifold
Boson transformation and inequivalent representations
Spontaneous symmetry breaking and functional integrals
The Goldstone theorem
U(1) symmetry
SU(2) symmetry
Spontaneous symmetry breaking in local gauge theories
The U(1) local gauge model
The chiral gauge model
Finite volume effects
Space-time dimensionality
Appendix I The order parameter space
Appendix J The Mermin—Wagner—Coleman theorem