The cascade model for multiple-pair creation in strong fields

Using computational quantum field theory we study the spontaneous breakdown process of the matter vacuum triggered by a strong external force field. We focus on the time scales that determine the creation of multiple electron-positron pair states. We show how the Pauli exclusion principle affects the creation probabilities of states with more than one pair. In the long time limit the evolution of these probabilities can be approximated by a simple cascade model. This model predicts a consecutive excitation from states with lower number of particles to those with a higher number of particles.