Gupta Sunny, Wu Wenjing, Huang Shengxi, Yakobson Boris I
Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States.
Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, USA.
J Phys Chem Lett. 2023 Apr 6;14(13):3274-3284. doi: 10.1021/acs.jpclett.2c03674. Epub 2023 Mar 28.
Single photons, often called flying qubits, have enormous promise to realize scalable quantum technologies ranging from an unhackable communication network to quantum computers. However, finding an ideal single-photon emitter (SPE) is a great challenge. Recently, two-dimensional (2D) materials have shown great potential as hosts for SPEs that are bright and operate under ambient conditions. This Perspective enumerates the metrics required for an SPE source and highlights that 2D materials, because of reduced dimensionality, exhibit interesting physical effects and satisfy several metrics, making them excellent candidates to host SPEs. The performance of SPE candidates discovered in 2D materials, hexagonal boron nitride and transition metal dichalcogenides, will be assessed based on the metrics, and the remaining challenges will be highlighted. Lastly, strategies to mitigate such challenges by developing design rules to deterministically create SPE sources will be presented.
单光子，通常被称为飞行量子比特，对于实现从不可破解的通信网络到量子计算机等可扩展量子技术有着巨大的前景。然而，找到理想的单光子发射器（SPE）是一项巨大的挑战。最近，二维（2D）材料作为明亮且能在环境条件下工作的SPE宿主展现出了巨大潜力。本观点文章列举了SPE源所需的指标，并强调二维材料由于维度降低，呈现出有趣的物理效应且满足多项指标，使其成为承载SPE的优秀候选材料。将根据这些指标评估在二维材料、六方氮化硼和过渡金属二硫属化物中发现的SPE候选材料的性能，并突出剩余的挑战。最后，将介绍通过制定设计规则来确定性地创建SPE源以缓解此类挑战的策略。
