Namekata Naoto, Wu Di, Hagihara Hiroki, Ohnuki Shinichiro, Fukuda Daiji, Inoue Shuichiro
Opt Express. 2021 Aug 2;29(16):24899-24909. doi: 10.1364/OE.427858.
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.
我们基于长程表面等离激元极化激元波导，对一维晶格结构中的“等离激元”行走者的连续时间演化进行了实验研究。等离激元行走者展现出一维量子行走的典型时间演化，这表明等离激元系统是构建量子行走模拟器的潜在平台。通过将实验结果与数值模拟进行比较，估计等离激元量子行走模拟器的保真度大于0.96，这表明等离激元系统可以成为大规模和高维量子行走模拟器的可行平台。
