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DY: Fachverband Dynamik und Statistische Physik
DY 26: Poster - Quanten Systems
DY 26.2: Poster
Tuesday, March 8, 2016, 18:15–21:00, Poster C
Phase-space structure of van der Waals dissociation — •Tom Schilling1 and Arnd Bäcker1, 2 — 1Institut für Theoretische Physik, TU Dresden, Dresden, Germany — 2MPI für Physik komplexer Systeme, Dresden, Germany
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 in particular normally hyperbolic invariant manifolds are of importance. We use frequency space plots, escape time plots, and 3D phase-space slices [1] to visualize the dynamics. This allows for an understanding of the chaotic transport leading to dissociation.
[1] M. Richter, S. Lange, A. Bäcker, and R. Ketzmerick, Visualization and comparison of classical structures and quantum states of four-dimensional maps, Phys. Rev. E 89, 022902 (2014)