Starting from a simple discrete model which exhibits a supersymmetric invariance we construct a local, interacting, two-dimensional Euclidean lattice theory which also admits an exact supersymmetry. This model is shown to correspond to the Wess-Zumino model with extended N=2 supersymmetry in the continuum. We have performed dynamical fermion simulations to check the spectrum and supersymmetric Ward identities and find good agreement with theory.
Catterall, Simon and Karamov, S., "A Two-Dimensional Lattice Model with Exact Supersymmetry" (2001). Physics - All Scholarship. 467.
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