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MO: Fachverband Molekülphysik

MO 28: Poster: Theory: Molecular Dynamics

MO 28.6: Poster

Donnerstag, 17. März 2011, 16:00–18:00, P1

A Wigner function for molecular rotation states — •Timo Fischer and Klaus Hornberger — Max Planck Institute for the Physics of Complex Systems, 01187 Dresden, Germany

We construct a phase space representation of the rotation states of an asymmetric top molecule, relying on the fact that the configuration space is the Group SO(3). We evaluate the Wigner function for asymmetric top eigenstates and provide Weyl symbols for the relevant angular momentum operators. This formalism is then compared to a second approach applicable to physical systems with Lie Group symmetries. The latter makes use of generalized coherent states to define an adequate phase space formulation satisfying the Stratonowich-Weyl correspondance.