基于金属阵列的高维和多光子量子源
Lin Li1,2,3,4, Zexuan Liu1,5,6, Xifeng Ren7,8
1National Laboratory of Solid State Microstructures, School of Physics, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China.
Science (New York, N.Y.)
|June 27, 2020
概括
研究人员使用先进的量子光学技术开发了一种100路量子光子源. 这一突破为集成量子设备提供了高维纠和多光子生成.
科学领域:
- 量子光学
- 超表面技术
- 综合光子学
背景情况:
- 两维超表面为量子光学应用提供灵活的光场操纵.
- 现有的量子光子源面临着可扩展性和可控制性的局限性.
研究的目的:
- 开发一个可扩展和可控制的量子光子源.
- 展示使用元表面的高维纠和多光子生成.
主要方法:
- 用非线性晶体集成一个金属阵列.
- 用于自发参数下转换的10x10金属阵列的制造.
- 使用金属透镜编码不同的阶段来产生纠的光子对.
主要成果:
- 一个100路自发的参数下转换光子对源的演示.
- 实现了高保真度的二,三,四维两光子路径纠 (98.4%,96.6%,95.0%).
- 观察到四光子和六光子产生,具有很高的光子难以区分.
结论:
- 基于金属阵列的量子光子源是紧的,稳定的,可控的.
- 这项技术为集成量子设备提供了一个新的平台.
- 实现了高维纠和多光子状态生成的进步.
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