Séminaire de physique mathématique

Séminaire en physique mathématique, le lundi 18 novembre 2024, à 14h, au CPHT, salle Louis Michel

Jürg Fröhlich (ETH Zürich)

"The stochastic evolution of isolated systems in quantum mechanics"

Abstract: In this talk I describe a Law of Dynamics for non-relativistic Quantum Mechanics (QM). The time evolution of physical systems consisting of charged matter interacting with the quantized electromagnetic field, e.g., electrons in the shell of an atom coupled to the radiation field, is non-linear, dissipative and stochastic, featuring isolated random events sometimes called “quantum jumps”. We discuss the equations describing it ! They involve a new type of stochastic process, dubbed “quantum Poisson jump process." An application to the phenomenon of fluorescence will be sketch