Continuous quantum walk in a 1-dimensional plasmonic lattice structure based on metal strip waveguides

We experimentally studied a continuous time evolution of a “plasmonic” walker in a 1-dimensional lattice structure based on long-range surface plasmon polariton waveguides. The plasmonic walker exhibited a typical time evolution of a 1-dimensional quantum walk, which indicates that the plasmonic sys...

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Bibliographic Details
Published in:Optics express 2021-08, Vol.29 (16), p.24899-24909
Main Authors: Namekata, Naoto, Wu, Di, Hagihara, Hiroki, Ohnuki, Shinichiro, Fukuda, Daiji, Inoue, Shuichiro
Format: Article
Language:English
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Summary:We experimentally studied a continuous time evolution of a “plasmonic” walker in a 1-dimensional lattice structure based on long-range surface plasmon polariton waveguides. The plasmonic walker exhibited a typical time evolution of a 1-dimensional quantum walk, which indicates that the plasmonic system is a potential platform to construct quantum walk simulators. By comparing experimental results to numerical simulations, the fidelity of the plasmonic quantum walk simulator is estimated to be > 0.96, which demonstrates that the plasmonic system can be a feasible platform for large-scale and high dimensional quantum walk simulators.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.427858