Wess–Zumino model
Type of supersymmetric quantum field theory / From Wikipedia, the free encyclopedia
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In theoretical physics, the Wess–Zumino model has become the first known example of an interacting four-dimensional quantum field theory with linearly realised supersymmetry. In 1974, Julius Wess and Bruno Zumino studied, using modern terminology, dynamics of a single chiral superfield (composed of a complex scalar and a spinor fermion) whose cubic superpotential leads to a renormalizable theory.[1] It is a special case of 4D N = 1 global supersymmetry.
The treatment in this article largely follows that of Figueroa-O'Farrill's lectures on supersymmetry,[2] and to some extent of Tong.[3]
The model is an important model in supersymmetric quantum field theory. It is arguably the simplest supersymmetric field theory in four dimensions, and is ungauged.