Asymptotic boundary layer method for unstable trajectories: Semiclassics for individual scar wavefunctions

Details Asymptotic boundary layer method for unstable trajectories: Semiclassics for individual scar wavefunctions Asymptotic boundary layer method for unstable trajectories: Semiclassics for individual scar wavefunctions

2009-07-09

arxiv.org/abs/0907.1626v1

Phys. Rev. E 80, 056202 (2009)

Physics

Quantum Physics

9 pages, 2 figures

Scientific paper

10.1103/PhysRevE.80.056202

We extend the asymptotic boundary layer (ABL) method, originally developed for stable resonator modes, to the description of individual wavefunctions localized around unstable periodic orbits. The formalism applies to the description of scar states in fully or partially chaotic quantum systems, and also allows for the presence of smooth and sharp potentials, as well as magnetic fields. We argue that the separatrix wave function provides the largest contribution to the scars on a single wave function. This agrees with earlier results on the wave-function asymptotics and on the quantization condition of the scar states. Predictions of the ABL formalism are compared with the exact numerical solution for a strip resonator with a parabolic confinement potential and a magnetic field.

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