Time-division Efficient Parallel Algorithm for Designing Metallic Slabs for Quantum Walk
Time-division Efficient Parallel Algorithm for Designing Metallic Slabs for Quantum Walk
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DOI：
10.1109/piers-fall48861.2019.9021804
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发表时间：
2019-12
期刊：
影响因子：
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通讯作者：
D. Wu;T. Yamaguchi;S. Inoue;S. Ohnuki
中科院分区：
文献类型：
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作者：
D. Wu;T. Yamaguchi;S. Inoue;S. Ohnuki
并行计算技术在计算电磁学中发挥着重要的作用，可以实现快速、高效的仿真。在传统技术中，整个空间被划分为许多较小的部分，其计算负载被分配到集群中。本文报道了一种新的并行技术，即时分算法。该方法采用有限差分复频域（FDCFD）方法获得频率域的电磁场。通过快速拉普拉斯逆变换（FILT）将复频域的场变换到时域。该方法的优点是通过并行计算可以有效地获得所需观测时间内的响应。作为应用的数值例子，设计了一种金属板等离子波导阵列，用于量子行走，以发展量子信息技术。将PWA的性质与经典随机漫步进行比较。
Parallel computing techniques play an important role in computational electromagnetics for performing fast and efficient simulation. In conventional techniques, the entire space is divided into many smaller parts whose computational loads are distributed into cluster. This paper reports a novel parallel technique, i.e., a time-division algorithm. In our method, EM field in frequency-domain is obtained by the finite-difference complex-frequency-domain (FDCFD) method. The field in the complex-frequency-domain is transformed into the time domain by fast inverse Laplace transform (FILT). The advantage of the proposed technique is that we can efficiently obtain the response at required observation time by parallel computing. As a numerical example of applications, a plasmonic waveguide array (PWA) using metallic slabs is designed for quantum walk toward developing quantum information technology. Properties of PWA will be discussed in comparison with classical random walk.