In the last few years, there is a huge upsurge in the number of closed deals regarding quantum technologies for materials, computing, communication and instrumentation. Such a trend has inevitably affected the research funding market; thus, large state initiatives are taken that are directly expected to drive the formulation of novel research concepts and the development of quantum device prototypes from sensors and circuitry to quantum memory and repeaters. A fundamental operation behind all these applications is the effective steering of electrons, constituting matter waves, along specific directions and with certain magnitudes, due to development of various reflective and refractive orders. The objective of this study is to optimize the simplest structure that supports such anomalous diffraction, namely a quantum metasurface comprising cylindrical rods embedded in suitable crystalline matter. Several highly-performing designs from these minimal setups are proven to work exceptionally as multiport components, employable to a variety of quantum engineering implementations.

中文翻译：

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具有最小量子亚表面的物质波的异常衍射

在过去的几年中，有关材料，计算，通信和仪器的量子技术的已完成交易数量激增。这种趋势不可避免地影响了研究资金市场。因此，人们采取了直接预期会推动新研究概念的制定和量子器件原型开发的大型计划，从传感器和电路到量子存储器和中继器。所有这些应用背后的基本操作是由于各种反射和折射阶数的发展，沿着特定方向和一定幅度有效地控制了构成物波的电子。这项研究的目的是优化支持这种异常衍射的最简单结构，量子超表面包括嵌入合适晶体中的圆柱棒。事实证明，这些最小设置中的几种高性能设计可作为多端口组件出色地工作，可用于多种量子工程实现。