Quasi-Eigenstate Evolution in Open Chaotic Billiards

Details Quasi-Eigenstate Evolution in Open Chaotic Billiards Quasi-Eigenstate Evolution in Open Chaotic Billiards

2009-04-02

arxiv.org/abs/0904.0416v1

Physics

Quantum Physics

4 pages, 4 figures

Scientific paper

We experimentally studied evolution of quasi-eigenmodes as classical dynamics undergoing a transition from being regular to chaotic in open quantum billiards. In a deformation-variable microcavity we traced all high-Q cavity modes in a wide range of frequency as the cavity deformation increased. By employing an internal parameter we were able to obtain a mode-dynamics diagram at a given deformation, showing avoided crossings between different mode groups, and could directly observe the coupling strengths induced by ray chaos among encountering modes. We also show that the observed mode-dynamics diagrams reflect the underlying classical ray dynamics in the phase space.

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