Open AccessContinuous quantum walk in a 1-dimensional plasmonic lattice structure based on metal strip waveguides
Author(s) -
Naoto Namekata,
Di Wu,
Hiroaki Hagihara,
Shinichiro Ohnuki,
Daiji Fukuda,
Shuichiro Inoue
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.427858
Subject(s) - plasmon , quantum walk , quantum , surface plasmon polariton , optics , lattice (music) , physics , surface plasmon , quantum simulator , optoelectronics , quantum computer , quantum mechanics , acoustics
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.