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- W3100650680 abstract "Optics has proved a fertile ground for the experimental simulation of quantum mechanics. Most recently, optical realizations of PT -symmetric quantum mechanics have been shown, both theoretically and experimentally, opening the door to international efforts aiming at the design of practical optical devices exploiting this symmetry. Here, we focus on the optical PT -symmetric dimer, a two-waveguide coupler where the materials show symmetric effective gain and loss, and provide a review of the linear and nonlinear optical realizations from a symmetry-based point of view. We go beyond a simple review of the literature and show that the dimer is just the smallest of a class of planar N-waveguide couplers that are the optical realization of the Lorentz group in 2 + 1 dimensions. Furthermore, we provide a formulation to describe light propagation through waveguide couplers described by non-Hermitian mode coupling matrices based on a non-Hermitian generalization of the Ehrenfest theorem." @default.
- W3100650680 created "2020-11-23" @default.
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- W3100650680 creator A5069513795 @default.
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- W3100650680 date "2016-08-24" @default.
- W3100650680 modified "2023-10-15" @default.
- W3100650680 title "Revisiting the Optical PT-Symmetric Dimer" @default.
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- W3100650680 doi "https://doi.org/10.3390/sym8090083" @default.
- W3100650680 hasPublicationYear "2016" @default.
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