Numerical Investigation of the 2D N=2 Wess-Zumino Model

Understand

We study lattice formulations of the two-dimensional N=2 Wess-Zumino model with a cubic superpotential.

• Discretizations with and without lattice supersymmetries are compared.
• We observe that the "Nicolai improvement" introduces new problems to simulations of the supersymmetric model.
• With high statistics we check the degeneracy of bosonic and fermionic masses on the lattice.