New stochastic approach to the renormalization of the supersymmetric phi^4 with ultrametric

We present a new real space renormalization-group map, on the space of probabilities, to study the renormalization of the SUSY phi^4. In our approach we use the random walk representation on a lattice labeled by an ultrametric space. Our method can be extended to any phi^n. New stochastic meaning is given to the parameters involved in the flow of the map and results are provided.