The Marinari-Parisi Model and Collective Field Theory
  We derive the supersymmetric collective field theory for the Marinari-Parisi model. For a specific choice of the superpotential, to leading order we find a one parameter family of ground states which can be connected via instantons. At this level of analysis the instanton size implied by the underlying matrix model does not appear. 
J.D. Cohn and H. Dykstra