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芯片对芯片量子光子控制非门电传输
Lan-Tian Feng1,2,3, Ming Zhang4, Di Liu1,2,3
1University of Science and Technology of China, Laboratory of Quantum Information, Hefei 230026, China.
Physical review letters
|July 31, 2025
概括
研究人员使用光子集成电路实现了高保真度的量子无控制 (CNOT) 门传输. 这一突破使远程量子门操作成为可能,推进了实际的量子网络.
科学领域:
- 量子信息科学 量子信息科学
- 光子集成电路的光子集成电路.
- 量子网络是一个量子网络.
背景情况:
- 量子网络对于先进的量子信息处理至关重要.
- 远程量子门控制对于网络功能至关重要.
- 光子学为量子技术提供了一个可扩展的平台.
研究的目的:
- 为了实现高准确度的量子控制非 (CNOT) 门传输.
- 通过使用光子集成电路来演示远程量子门操作.
- 推进实用,大规模量子网络的发展.
主要方法:
- 使用高维路径编码的光子集成电路.
- 实现了路径纠量子状态的芯片上生成.
- 通过单模光纤 (5米和1公里) 进行了芯片对芯片量子光子互连.
主要成果:
- 在远程量子节点之间实现了高保真性CNOT门传输.
- 经过验证的远程量子位纠,平均准确度为95.69% (5m) 和94.07% (1km).
- 通过断层扫描证实了门的性能,保真度为94.81% (5米) 和93.04% (1公里).
结论:
- 通过远程传输证明了远程量子门操作的可行性.
- 验证了光子集成电路在量子网络中的有效性.
- 为可扩展和实用的量子网络铺平了道路.
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