一个重复的Cat代码架构的性能分析:计算256位圆曲线对数在9小时内使用126 133个Cat量子位
Élie Gouzien1, Diego Ruiz2,3, Francois-Marie Le Régent2,3
1Université Paris-Saclay, CNRS, CEA, Institut de physique théorique, 91191 Gif-sur-Yvette, France.
Physical review letters
|August 11, 2023
概括
这项研究量化了量子计算中猫量子比特的重复代码的成本. 它使用Shor的算法演示了256位圆曲线对数计算,提供了架构指导.
科学领域:
- 量子计算是一种量子计算.
- 量子信息科学是一种量子信息科学.
- 量子错误的纠正 量子错误的纠正
背景情况:
- 猫量子比特为量子计算提供可调节的噪声偏差.
- 重复代码可以防止猫量子比特中的相位错误.
- 大规模的量子计算机架构需要性能分析.
研究的目的:
- 为了量化猫量子比特的重复代码的成本.
- 为大型猫量子位架构提供指导.
- 用Shor的算法分析2D网格架构的性能.
主要方法:
- 对2D网格猫量子位架构的性能分析.
- 通过格子手术实现2量子比特门.
- 使用投射测量和网关传输来准备魔法状态的离线容错准备.
- 路由量子比特用于全对全的连接.
主要成果:
- 一个256位的圆曲线对数在9小时内被计算出来.
- 计算需要126,133个猫量子位,平均每个状态有19个光子.
- 假设单到两光子损失比为10^-5和周期时间为500 ns.
结论:
- 建议使用猫量子位的二维网格架构对肖尔的算法是可行的.
- 性能分析为评估量子计算架构提供了可重复使用的框架.
- 这项工作指导了未来量子计算平台的架构选择.
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