在可扩展量子网络上进行纠分布的功能量子节点.
Chin-Wen Chou1, Julien Laurat, Hui Deng
1Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, CA 91125, USA.
概括
研究人员在距离3米的两个量子节点之间分配了量子纠,为安全的量子通信和量子重复器铺平了道路.
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.
- 量子光学是一种量子光学.
背景情况:
- 量子纠是量子信息处理的一个基本资源.
- 在相当长的距离上分布纠对于构建量子网络至关重要.
- 以前的实验在保持纠忠实性和可扩展性方面面临着挑战.
研究的目的:
- 为了证明两个物理分离的量子节点之间的纠分布.
- 用贝尔不等式测量来验证纠的质量.
- 展示开发的系统对量子通信协议和量子重复器的潜力.
主要方法:
- 两个对原子记忆的异步准备.
- 将存储的原子状态连贯地图化为光场.
- 测量贝尔不等式的违反,以确认纠.
主要成果:
- 量子节点之间的纠的成功分布隔离3米.
- 实现了接近最大的极化纠.
- 证明了贝尔不等式的违反,证实了真正的纠.
结论:
- 展示的系统成功地将量子纠分布在很短的距离上.
- 开发的量子节点和道是量子重复器的合适构建块.
- 这项工作推动了强大的远距离量子通信的发展.
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