Non-Hermitian spectral effects in a PT-symmetric waveguide

Details Non-Hermitian spectral effects in a PT-symmetric waveguide Non-Hermitian spectral effects in a PT-symmetric waveguide

2008-02-07

arxiv.org/abs/0802.0921v1

J. Phys. A: Math. Theor. 41 (2008) 244013.

Physics

Mathematical Physics

17 pages, LaTeX with 7 EPS figures. Contrary to a version to appear in J. Phys. A, this one contains the figures in colour.

Scientific paper

10.1088/1751-8113/41/24/244013

We present a numerical study of the spectrum of the Laplacian in an unbounded
strip with PT-symmetric boundary conditions. We focus on non-Hermitian features
of the model reflected in an unusual dependence of the eigenvalues below the
continuous spectrum on various boundary-coupling parameters.

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