Van der Waals-Zeeman Colloquium
Tuesday, 7 Oct 2008, 16:00h
Symmetry, Symmetry Breaking and (Quantum) Chaos
Prof. Thomas Guhr
Fachbereich Physik, Universitšt Duisburg-Essen
The level densities of different (quantum) systems, such as atoms, nuclei, resonating mechanical systems, etc, have little in common. However, the fluctuations, i.e. the deviations around the level densities, show remarkable similarities. This surprising universality has its roots in the regular or chaotic dynamics of the system. Once the universality is understood, it can be used as a tool to study other properties of the system. The talk will demonstrate that for effects due to symmetry and symmetry breaking in various systems. Depending on the experimental data available, different types of statistical observables can be used in such an analysis. A unifying statistical description based on quantum chaos considerations will be presented.