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Topological Quantum Computing

Spectral imaging of topological edge states in plasmonic waveguide arrays

arXiv
Authors: Felix Bleckmann, Zlata Cherpakova, Stefan Linden, Andrea Alberti

Year

2016

Paper ID

42002

Status

Preprint

Abstract Read

~2 min

Abstract Words

93

Citations

N/A

Abstract

We report on the observation of a topologically protected edge state at the interface between two topologically distinct domains of the Su-Schrieffer-Heeger model, which we implement in arrays of evanescently coupled dielectric-loaded surface plasmon polariton waveguides. Direct evidence of the topological character of the edge state is obtained through several independent experiments: Its spatial localization at the interface as well as the restriction to one sublattice is confirmed by real-space leakage radiation microscopy. The corresponding momentum-resolved spectrum obtained by Fourier imaging reveals the midgap position of the edge state as predicted by theory.

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  • We report on the observation of a topologically protected edge state at the interface between two topologically distinct domains of the Su-Schrieffer-Heeger model, which we...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1612.01850 [2] arXiv https://arxiv.org/abs/1612.01850 [3] Publisher https://arxiv.org/abs/1612.01850

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