EIGENVALUE COLLISION FOR PT-SYMMETRIC WAVEGUIDE
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České vysoké učení technické v Praze
Czech Technical University in Prague
Czech Technical University in Prague
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We consider a model of a planar PT-symmetric waveguide and study the phenomenon of the eigenvalue collision under perturbation of the boundary conditions. This phenomenon was discovered numerically in previous works. The main result of this work is an analytic explanation of this phenomenon.
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Acta Polytechnica. 2014, vol. 54, no. 2.
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