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在电信波长中的纠光子在晶体中的量子存储

Ming-Hao Jiang¹, Wenyi Xue¹, Qian He¹

¹National Laboratory of Solid-state Microstructures, School of Physics, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210093, Nanjing, China.

Nature communications

|November 2, 2023

概括

研究人员使用离子 (Er3+) 成功存储和检索纠的光子,这是量子互联网发展的关键步骤. 量子内存的这一突破显著延长了存储时间,为固态量子网络铺平了道路.

科学领域:

量子信息科学量子信息科学
量子通信是一种量子通信.
固态量子存储器固态量子存储器

背景情况:

量子互联网需要有效地存储和分配纠.
电信波长纠的光子和量子记忆对于与现有光纤网络的兼容性至关重要.
离子 (Er3+) 对电信量子内存有希望,但并未证明纠存储.

研究的目的:

为了证明纠的光子的存储和检索使用167的Er3+离子.
为了在固态系统中实现长时间的纠存储时间.
为了证明量子纠的成功存储.

主要方法:

使用集成光子芯片生成纠的光子.
利用纠光子的狭窄线宽和167Er3+离子的长相干时间进行存储.
雇员纠目击者测量以证明存储的纠状态.

主要成果:

成功演示了两个电信光子纠状态的存储和检索.
实现了1.936微秒的存储时间,比之前的报告长387倍多.
证实了在Er3+离子晶体中纠的保存.

结论:

这项工作代表了使用Er3+离子进行纠光子存储的首次演示.
实现的长存储时间是量子内存应用的重大进步.
这些发现为开发基于固态设备的量子网络铺平了道路.

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