面向现实NISQ仿真的实际误差建模

Teruo Tanimoto, Shuhei Matsuo, Satoshi Kawakami, Y. Tabuchi, M. Hirokawa, Koji Inoue
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引用次数: 0

摘要

在量子计算中,设备、架构、优化技术、算法和应用的研究和开发正在并行发展。为了使这些工作互惠互利,实用和精确的量子计算机模拟器作为系统范围的设计框架是必要的。本文主要研究量子位的测量误差和初始化误差。这些错误是不可避免的,因为这些过程是经典和量子信息处理之间的接口。我们将量子无损探测技术建模为测量和初始化方法,并在高性能量子模拟器Intel-QS上实现。我们对8量子位配置的量子傅里叶变换的案例研究表明了考虑这些误差的重要性。即,提高初始保真度的后选可以将理论结果与错误输出之间的差距扩大3.35倍。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Practical Error Modeling Toward Realistic NISQ Simulation
In quantum computing, research and development of devices, architecture, optimization techniques, algorithms, and applications are evolving with eagerness in parallel. To make these work mutually beneficial, practical and accurate quantum computer simulators as system-wide design frameworks are necessary. In this paper, we focus on measurement and initialization errors of qubits. These errors are inevitable because these procedures are interfaces between classical and quantum information processing. We model the quantum non-demolition detection technique as measurement and initialization methods and implement them on Intel-QS, a high-performance quantum simulator. Our case study with quantum Fourier transform on 8 qubits configuration demonstrates the importance of taking these errors into account. That is, post-selection, which improves the initialization fidelity, can enlarge the gap between the theoretical result and incorrect outputs by 3.35 times.
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