Author(s): Stefano Longhi
Light propagation in distributed-feedback optical structures with gain or loss regions is shown to provide an accessible laboratory tool to visualize in optics the spectral properties of the one-dimensional Dirac equation with non-Hermitian interactions. Spectral singularities and PT symmetry breaki...
[Phys. Rev. Lett. 105, 013903] Published Wed Jun 30, 2010
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