Optics Express

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

Naoto Namekata, Di Wu, Hiroki Hagihara, Shinichiro Ohnuki, Daiji Fukuda, Shuichiro Inoue

Published Jul 12, 2021• 2 citations

Abstract

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.

DOI: 10.1364/oe.427858

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