使用时空权衡加快量子测量速度
Christopher Corlett1,2, Ieva Čepaitė3, Andrew J Daley3,4
1University of Bristol, Quantum Engineering Centre for Doctoral Training, Tyndall Avenue, Bristol BS8 1FD, United Kingdom.
Physical review letters
|March 14, 2025
概括
我们使用辅助系统开发了一种量子测量加速方案. 这种方法提高了读取速度,并且对实验错误具有稳定性,有利于量子错误校正.
科学领域:
- 量子信息科学 量子信息科学
- 量子计算是一种量子计算.
- 量子测量是一种量子测量.
背景情况:
- 量子测量速度对于量子计算至关重要.
- 目前的协议往往涉及纠系统与ancilla.
- 限制存在于理想化的场景和对噪声的强度.
研究的目的:
- 提出一种用于加速量子测量的新方案.
- 为了调查该方案的强度,对实验的缺陷.
- 为增强量子技术平台提供一种硬件无关的方法.
主要方法:
- 开发一个协议,将要测量的系统与辅助系统纠在一起.
- 执行数值建模以模拟门噪声和读出错误.
- 在理想化和现实的条件下分析时空权衡.
主要成果:
- 在理想化的条件下,与ancilla的数量相比,读出速度呈线性增加.
- 通过数值模拟,通过数值模拟验证了对门噪声和读出错误的方案稳定性.
- 在特定情况下观察到在线性速度改善的潜力.
结论:
- 拟议的方案有效地加速了量子测量.
- 这种方法对常见的实验不完美有很强的抵抗力.
- 这种方法具有广泛的适用性,对于加速量子错误校正中的中电路测量至关重要.
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