随机基准测试与非马科夫噪声和现实的有限时间门
Antoine Brillant1, Peter Groszkowski2, Alireza Seif3
1Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA.
Physical review letters
|September 10, 2025
概括
这项研究在单量子比特随机基准测试中分析了非马科夫经典噪声. 研究结果显示,噪声会影响门的实施,影响衰变曲线,并使实验解释复杂化.
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.
背景情况:
- 随机基准测试 (RB) 是一种用于描述量子设备的标准技术.
- 经典噪音对量子运算的准确性有很大的影响.
- 了解噪音对于开发容错量子计算机至关重要.
研究的目的:
- 调查非马科夫经典噪声对单量子比特RB实验的影响.
- 开发一个理论框架,用于在现实的有限持续时间门脉冲下分析RB.
- 探索非马科夫噪声如何影响生存概率衰变曲线.
主要方法:
- 开发了一个新的理论框架来建模非马科夫古典噪音.
- 使用有限持续时间脉冲显式建模的门实现.
- 对于生存概率衰变曲线的衍生非扰动表达式.
主要成果:
- 证明非马科夫噪音引入了对门实施方法的强烈依赖.
- 确定了表现出指数和权力规律衰退行为的制度.
- 展示了这些噪声引起的效应如何使RB解释复杂化.
结论:
- 非马科维噪声对RB实验产生重大影响,导致各种衰变模式.
- 开发的框架允许通过分析衰变曲线特征来探测非马可维性.
- 准确解释RB实验需要仔细考虑噪声特征.
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