The chirality of exceptional points
- Cite this article as:
- Heiss, W. & Harney, H. Eur. Phys. J. D (2001) 17: 149. doi:10.1007/s100530170017
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Exceptional points are singularities of the spectrum and wave functions of a Hamiltonian which occur as functions of a complex interaction parameter. They are accessible in experiments with dissipative systems. We show that the wave function at an exceptional point is a specific superposition of two configurations. The phase relation between the configurations is equivalent to a chirality which should be detectable in an experiment.