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math.SP2011
PT symmetry and Weyl asymptotics
Johannes Sjoestrand
For a class of PT-symmetric operators with small random perturbations, the eigenvalues obey Weyl asymptotics with probability close to 1. Consequently, when the principal symbol is…
math.AP2011
Fractal Weyl law for open quantum chaotic maps
Stéphane Nonnenmacher, Johannes Sjoestrand, Maciej Zworski
We study the semiclassical quantization of Poincaré maps arising in scattering problems with fractal hyperbolic trapped sets. The main application is the proof of a fractal Weyl up…