Numerical accuracy of Bogomolny's semiclassical quantization scheme in quantum billiards

Details Numerical accuracy of Bogomolny's semiclassical quantization scheme in quantum billiards Numerical accuracy of Bogomolny's semiclassical quantization scheme in quantum billiards

1999-06-09

arxiv.org/abs/chao-dyn/9906013v1

Physics

Condensed Matter

21 Revtex pages, 6 ps figures, accepted for publication in J. Phys. A

Scientific paper

10.1088/0305-4470/32/29/303

We use the semiclassical quantization scheme of Bogomolny to calculate eigenvalues of the Lima\c con quantum billiard corresponding to a conformal map of the circle billiard. We use the entire billiard boundary as the chosen surface of section (SOS) and use a finite approximation for the transfer operator in coordinate space. Computation of the eigenvalues of this matrix combined with a quantization condition, determines a set of semiclassical eigenvalues which are compared with those obtained by solving the Schr\"odinger equation. The classical dynamics of this billiard system undergoes a smooth transition from integrable (circle) to completely chaotic motion, thus providing a test of Bogomolny's semiclassical method in coordinate space in terms of the morphology of the wavefunction. We analyze the results for billiards which exhibit both soft and hard chaos.

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