Wei Zeyong, Li Haoyu, Dou Linyuan, Xie Lingyun, Wang Zhanshan, Cheng Xinbin
Institute of Precision Optical Engineering, School of Physics Science and Engineering, Tongji University, Shanghai 200092, China.
MOE Key Laboratory of Advanced Micro-Structured Materials, Tongji University, Shanghai 200092, China.
Micromachines (Basel). 2022 Jul 28;13(8):1204. doi: 10.3390/mi13081204.
Optical analog computing has natural advantages of parallel computation, high speed and low energy consumption over traditional digital computing. To date, research in the field of on-chip optical analog computing has mainly focused on classical mathematical operations. Despite the advantages of quantum computing, on-chip quantum analog devices based on metasurfaces have not been demonstrated so far. In this work, based on a silicon-on-insulator (SOI) platform, we illustrated an on-chip quantum searcher with a characteristic size of 60 × 20 μm. We applied classical waves to simulate the quantum search algorithm based on the superposition principle and interference effect, while combining it with an on-chip metasurface to realize modulation capability. The marked items are found when the incident waves are focused on the marked positions, which is precisely the same as the efficiency of the quantum search algorithm. The proposed on-chip quantum searcher facilitates the miniaturization and integration of wave-based signal processing systems.
与传统数字计算相比，光学模拟计算具有并行计算、速度快和能耗低等天然优势。迄今为止，片上光学模拟计算领域的研究主要集中在经典数学运算上。尽管量子计算具有优势，但基于超表面的片上量子模拟器件目前尚未得到验证。在这项工作中，我们基于绝缘体上硅（SOI）平台展示了一种特征尺寸为60×20μm的片上量子搜索器。我们应用经典波基于叠加原理和干涉效应来模拟量子搜索算法，同时将其与片上超表面相结合以实现调制能力。当入射波聚焦在标记位置时就能找到标记物品，这与量子搜索算法的效率完全相同。所提出的片上量子搜索器有助于基于波的信号处理系统的小型化和集成。
