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多模固态量子内存之间的电信预告纠
Dario Lago-Rivera1, Samuele Grandi1, Jelena V Rakonjac1
1ICFO - Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Spain.
Nature
|June 3, 2021
概括
研究人员使用化晶体证明了两个量子节点之间的纠. 这一突破为未来的量子网络和量子重复器提供了强大的,长期的纠存储.
科学领域:
- 量子信息科学
- 量子通信
- 固态量子系统
背景情况:
- 未来的量子网络需要在远程节点之间进行纠分布,用于通信,传感和计算.
- 现有的纠方法与电信波长和网络功能所必需的多模式操作不兼容.
研究的目的:
- 使用固态量子记忆来展示空间分离的量子节点之间的预告纠.
- 实现与电信波长兼容的纠存储,并能够进行多模式操作.
主要方法:
- 在每个量子节点上使用化晶体来储存来自相关对的光子.
- 通过探测电信波长光子来预测纠,达到高达1.4千赫的频率.
- 已证明最多可存储25微秒的纠和62个模式的时间复杂操作.
主要成果:
- 在不同的实验室中成功生成了两个量子记忆之间的纠.
- 纠存储在预告通道中表现出对损失的强度.
- 实现了时间复杂操作, 展示了高容量量子重复器的潜力.
结论:
- 开发的系统为基于固态资源的现场部署的多重复合量子重复器提供了可行的途径.
- 这项工作可以扩展到更长距离的纠分布, 这对于扩展量子网络至关重要.
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