Gaussian, exponential and power-law decays and their time ranges : An analysis based on the Friedrichs model(Perspectives of Nonequilibrium Statistical Physics-The Memory of Professor Shuichi Tasaki-)

Abstract

The time ranges of the three typical decay forms in quantum mechanics, i.e., the Gaussian, exponential and power-law decays, are investigated on the basis of the Friedrichs model. The analysis yields a deeper understanding of the decay dynamics of quantum systems.