在碳化中实验生成自旋光子纠
Ren-Zhou Fang1,2,3, Xiao-Yi Lai1,2,3, Tao Li1,2,3
1Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China.
Physical review letters
|May 3, 2024
概括
研究人员使用碳化缺陷实现了自旋光子纠,这是强大的量子网络的关键步骤. 这一突破通过连接远程量子节点,使远距离量子通信成为可能.
科学领域:
- 量子信息科学 量子信息科学
- 固态物理 固态物理
- 纳米光子学 纳米光子学
背景情况:
- 固态系统为量子网络提供了优势,集成纳米光子学和核旋转,以增强光子发射和长期量子记忆.
- 碳化 (SiC) 具有其点缺陷,是量子应用的有希望的材料,由于材料的可用性和建立的纳米制造.
研究的目的:
- 在碳化中空缺缺陷和单个散射光子之间实验生成和验证自旋光子纠.
- 展示一种用于量子网络应用的高质量,确定性的自旋光子纠的方法.
主要方法:
- 利用碳化中的空缺陷作为量子发射器.
- 使用不平衡的马赫-泽恩德干扰仪在时间自由度中编码了一个光子量子位.
- 通过在声子侧带中分散的光子测量了自旋状态,并通过光子相关性验证了纠.
主要成果:
- 成功地在空旋转和零声子线上的单一光子之间产生了纠.
- 通过测量的光子相关性来验证,证明了决定性纠的产生.
- 建立了一个可扩展的方法来纠远程量子节点,使用双旋光子纠.
结论:
- 在实现碳化中自旋光子纠的关键里程碑,这对于固态量子网络至关重要.
- 开发的技术为创建高保真纠提供了一个强大的平台,为远距离量子通信铺平了道路.
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