使用可编程光子处理器的量子计算优势
Lars S Madsen1, Fabian Laudenbach1, Mohsen Falamarzi Askarani1
1Xanadu, Toronto, ON, Canada.
Nature
|June 1, 2022
概括
通过可编程处理器Borealis实现了光子量子计算机的计算优势. 这一突破在复杂任务上显著超过经典计算机,
科学领域:
- 量子计算
- 量子光学
- 计算物理
背景情况:
- 量子计算机为特定任务提供了比经典系统的计算优势.
- 之前的光子量子处理器缺乏完全的门可编程性,容易被伪造.
- 证明量子优势需要在明确的问题上超越经典算法.
研究的目的:
- 使用动态可编程光子处理器证明量子计算优势.
- 验证Borealis量子处理器用于高斯玻色子采样的能力.
- 建立光子学作为一个实用的量子计算平台.
主要方法:
- 使用Borealis,一个光子处理器在所有门的动态可编程.
- 在3D连接的216个纠挤压模式上执行了高斯玻色子采样 (GBS).
- 采用时间复合,光子数解析架构.
主要成果:
- 实现了量子计算优势, 在运行时间内, Borealis 的性能超过经典模拟的5000万倍.
- 用最多 219 个光子和 125 个平均光子数生成的 GBS 实验.
- 博雷利斯的运行时间为36微秒,与经典超级计算机的估计9000多年相比.
结论:
- 博雷利斯为光子量子计算建立了一个新的基准, 展示了动态可编程性和计算优势.
- 这些结果验证了光子学在构建实用量子计算机方面的关键技术.
- 这项工作代表了实现量子计算潜力的重要一步.
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