In theoretical particle physics, the identification of the symmetry of systems is usually the starting point for constructing a theory. Supersymmetry is a symmetry for the replacement Fermions with Bosons and may be a remarkable one. Supersymmetry is not observed experimentally, but it is expected that this symmetry may play the fundamental role for constructing an unified theory.

In the Supersymmetric theory, the Quantum Collections are strongly reduced by that large symmetry, hence we can sometimes calculate the physical observables without the perturbation. We study such kind of "Non-Purturbative Effect".