Dresden 2017 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

DY: Fachverband Dynamik und Statistische Physik

DY 32: Quantum Chaos

DY 32.2: Vortrag

Mittwoch, 22. März 2017, 10:15–10:30, HÜL 186

Phase-space dynamics of van der Waals dissociation — •Tom Schilling¹ and Arnd Bäcker^{1, 2} — ¹TU Dresden, Institut für Theoretische Physik, Dresden — ²MPI für Physik komplexer Systeme, Dresden

An effective description of the dissociation of van der Waals complexes, such as He − I₂, can be obtained in terms of 4D symplectic maps. The escape dynamics is governed by a mixed phase space where invariant manifolds are attached to a family of fixed points at infinity. We use frequency space plots, escape time plots, and 3D phase-space slices to visualize the dynamics. Together with an analysis of the escape time statistics this allows for an understanding of the higher-dimensional chaotic transport leading to dissociation.