模块化光子量子计算机的扩展和网络化
H Aghaee Rad1, T Ainsworth1, R N Alexander2
1Xanadu Quantum Technologies Inc., Toronto, Ontario, Canada.
Nature
|January 22, 2025
概括
研究人员使用35个芯片构建了一个光子量子计算机模型. 这表明了通用,容错的量子计算与集成光子系统的可扩展途径.
科学领域:
- 量子计算
- 光子学
- 综合光子学
背景情况:
- 由于芯片集成,光纤和室温操作, 光学是量子计算的一个有前途的平台.
- 具有通用和容错量子计算的基本功能的完整集成系统需要实验证明.
研究的目的:
- 构建和演示一个光子量子计算机的规模模型.
- 展示用于通用和容错量子计算的集成系统的可行性.
主要方法:
- 使用35个光子芯片,84个压缩器和36个光子数分解探测器构建了一个量子计算机模型.
- 通过光纤互联网连接的离散可扩展模块.
- 展示了通用性和容错性的关键构建块,包括非高斯状态和适应性测量的预告合成.
主要成果:
- 合成了一个集群状态, 跨越864亿模式的独立芯片.
- 实现了叶片式距离-2重复代码与实时解码.
- 证明了资源状态的预示合成,实时复杂化,时空集群状态形成和适应性测量.
结论:
- 构建的光子量子计算机模型展示了越过容错值的路径.
- 这项工作为扩展光子量子计算机以解决有用应用奠定了基础.
- 对光学损失公差的分析为克服故障公差的一个主要障碍提供了见解.
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