轨道角动量量子光源的集成化研究
Research progress of integrated quantum light sources with orbital angular momentum
陈波 1刘进 1李俊韬 1王雪华1
作者信息
- 1. 中山大学物理学院,光电材料与技术国家重点实验室,广州 510275
- 折叠
摘要
量子光源是量子信息处理的关键器件之一,是量子计算、量子通信、量子模拟等应用的重要基础,基于量子光源制备量子态并提升其编码容量是量子信息技术发展的重大挑战.轨道角动量(OAM)是光子一种无限维的空间自由度,其空间模式构成无限维完备的正交基,利用OAM制备高维量子态可大幅提升量子信息处理容量,是高维量子信息处理的关键资源.随着光量子技术的进步,多种重要光量子器件已可在集成化芯片上实现.然而,微纳尺度下制备高维OAM量子态仍是实现量子光源集成化的挑战,亟需深入研究和突破.本文综述并讨论了集成化OAM量子光源的研究进展及其研究中面临的热点和难点问题,为推进高维量子光源在量子信息处理中的研究及实用化进程提供参考.
Abstract
Quantum light sources are one of key devices for quantum information processing,and they are also the important foundation for applications such as in quantum computing,quantum communication,and quantum simulation.Improving the capacity of quantum information coding by using the quantum light source is a major challenge in the development of quantum information technology.Photons with a helical phase front can carry a discrete,unlimited but quantized amount of orbital angular momentum(OAM).The infinite number of states with different OAMs can greatly increase the capacity of optical communication and information processing in quantum regimes.To date photons carrying OAM have mainly been generated by using bulk crystals,which limits the efficiency and the scalability of the source.With the advancement of quantum photonic technology,many significant quantum photonic devices can now be realized on integrated chips.However,creating high-dimensional OAM quantum states at a micro-nano scale is still a challenge.And the research of harnessing high-dimensional OAM mode by using integrated quantum photonic technologies is still in its infancy.Here,the authors review the recent progress and discuss the integrated quantum light sources with OAM.The authors introduce the research progress of using OAM for both single photons and entangled photons and emphasize the exciting work on pushing boundaries in high-dimensional quantum states.This may pave the way for the research and practical applications of high-dimensional quantum light sources.
关键词
轨道角动量/量子光源/集成化/高维量子态Key words
orbital angular momentum/quantum light source/integration/high-dimensional quantum state引用本文复制引用
基金项目
国家重点研发计划(2021YFA1400800)
国家自然科学基金(12104522)
国家自然科学基金(62035017)
广东省自然科学基金(2022A1515011400)
出版年
2024
国家科技期刊平台
NSTL
万方数据