Quantization of multidimensional cat maps

Details Quantization of multidimensional cat maps Quantization of multidimensional cat maps

1999-04-22

arxiv.org/abs/chao-dyn/9904042v1

Nonlinear Sciences

Chaotic Dynamics

33 pages, latex, 6 figures, Submitted to Nonlinearity

Scientific paper

10.1088/0951-7715/13/2/302

In this work we study cat maps with many degrees of freedom. Classical cat maps are classified using the Cayley parametrization of symplectic matrices and the closely associated center and chord generating functions. Particular attention is dedicated to loxodromic behavior, which is a new feature of two-dimensional maps. The maps are then quantized using a recently developed Weyl representation on the torus and the general condition on the Floquet angles is derived for a particular map to be quantizable. The semiclassical approximation is exact, regardless of the dimensionality or of the nature of the fixed points.

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