从光子芯片上的单光子源预报了三光子纠
Si Chen1,2,3, Li-Chao Peng1,2,3, Y-P Guo1,2,3
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
|April 13, 2024
概括
研究人员通过实验实现了预告的三光子格林伯格-霍恩-齐林格 (3-GHZ) 状态,这是基于融合的量子计算的关键资源. 这一突破推动了可扩展,耐故障的光子量子计算机的发展.
科学领域:
- 量子信息科学 量子信息科学
- 量子光学是一种量子光学.
- 摄影量子计算 摄影量子计算
背景情况:
- 基于融合的量子计算为通用量子计算提供了一个可扩展的途径.
- 在光子芯片上生成基本的多光子纠资源状态仍然是一个重大挑战.
- 预告的三光子格林伯格-霍恩-齐林格 (3-GHZ) 状态是这个架构的关键,但尚未实现的资源.
研究的目的:
- 首次通过实验实现广为宣传的三光子格林伯格-霍恩-齐林格 (3-GHZ) 状态.
- 为了解决阻碍基于聚变的光子量子计算的资源缺口.
- 为了证明在光子芯片上产生关键纠状态的可行性.
主要方法:
- 使用低损耗,完全可编程的光子芯片.
- 在电信波长制度中使用了六个无法区分的单个光子的操纵.
- 实现了一个预告检测机制,以确认生成3-GHZ状态.
主要成果:
- 实现了第一个预告为3GHZ状态的实验实现.
- 在预告检测时获得所需的3GHZ状态,其保真度为0.573±0.024.
- 证明了量子计算的关键资源的成功生成.
结论:
- 这项工作成功地弥合了基于融合的量子计算的基本资源缺口.
- 预告的3GHz状态的实验实现是朝着容错光子量子计算迈出的重要一步.
- 这一成就加速了大规模光学量子计算机的发展.
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