论文标题
表征NISQ设备的稳定性
Characterizing the Stability of NISQ Devices
论文作者
论文摘要
在这项研究中，我们关注NISQ设备稳定性问题。定义设备稳定性轮廓的参数是由Divincenzo的工作激励的，在讨论了量子计算的物理实施要求。我们开发了指标和理论框架来量化Divincenzo要求并研究这些关键指标的稳定性。我们评估的基础是直方图相似性（在时间和空间中）。对于相同的实验，在空间中产生可重复的直方图和相似直方图的设备被认为是更可靠的。为了牢固地调查此类可靠性问题，我们提出了一个基于力矩的距离（MBD）度量。我们使用从IBM的约克镇设备收集的数据来说明我们的方法论。讨论了两种类型的评估：空间稳定性和时间稳定性。
In this study, we focus on the question of stability of NISQ devices. The parameters that define the device stability profile are motivated by the work of DiVincenzo where the requirements for physical implementation of quantum computing are discussed. We develop the metrics and theoretical framework to quantify the DiVincenzo requirements and study the stability of those key metrics. The basis of our assessment is histogram similarity (in time and space). For identical experiments, devices which produce reproducible histograms in time, and similar histograms in space, are considered more reliable. To investigate such reliability concerns robustly, we propose a moment-based distance (MBD) metric. We illustrate our methodology using data collected from IBM's Yorktown device. Two types of assessments are discussed: spatial stability and temporal stability.
