Since the pioneering papers, a wide variety of models have been designed to understand decoherence in different specific contexts, for some given Hamiltonians. In this talk, we would like to embrace a more general point of view, and try to answer the two following questions as universally as possible, i.e. without specifying any Hamiltonian:
1. What is the typical size of an environment needed to entail proper decoherence on a system?
2. Why is the universe not frozen by the quantum Zeno effect?
Information
Speaker: Antoine Soulas (Institute of Research in Mathematics of Rennes (IRMAR), University of Rennes, France)