缺陷感知的并行原子重载协议用于中性原子量子计算机

中文摘要 AI 辅助

在这项工作中，我们提出了一种缺陷感知的并行原子重载协议，该协议基于缺陷信息重载原子以提高原子填充率。所提出的协议对中性原子量子计算机非常有用，在这些计算机中，将原子重载到缺陷（即原子丢失位置）对于针对原子丢失的持续运行是必需的。我们的协议同时利用并行性和缺陷感知性来提高原子重载效率。所提出的协议由相干原子重载操作和缺陷感知规划器组成。前者用原子补充缺陷，同时相干地保持量子信息。这种相干性使我们能够根据当前缺陷配置自适应地选择重载策略。后者确定原子重载模式以高效地补充缺陷。在假设低噪声环境的数值实验中，我们确认对于36×90原子阵列，平均原子填充率从98.61%提高到99.94%，与使用混合整数规划求解器获得的填充率相差在0.001个百分点以内，同时每次重载规划时间低于0.1毫秒。这些结果表明，缺陷感知的并行重载能够实现并维持高原子填充率，同时缺陷感知规划器的性能满足中性原子量子计算机的实时要求。

英文摘要

In this work, we propose a defect-aware parallel atom reloading protocol that reloads atoms based on defect information to increase the atom filling rate. The proposed protocol is useful for neutral-atom quantum computers, where reloading atoms into the defects, or atom-loss positions, is mandatory for continuous operation against atom loss. Our protocol takes advantage of both parallelism and defect awareness to improve atom-reloading efficiency. The proposed protocol consists of the coherent atom reloading operation and the defect-aware planner. The former replenishes the defects with atoms preserving the quantum information coherently. This coherence allows us to adaptively choose the reloading strategy based on the current defect configuration. The latter determines the atom reloading pattern to efficiently replenish the defects. In numerical experiments assuming a low-noise environment, we confirmed that the average atom filling rate improved from 98.61% to 99.94% for a 36 x 90 atom array, matching the filling rate obtained with a mixed integer programming solver to within 0.001 percentage points while planning each reload in under 0.1 ms. These results demonstrate that defect-aware parallel reloading can achieve and sustain high atom filling rates while the performance of the defect-aware planner meets the real-time requirements of neutral-atom quantum computers.

发表机构

• Graduate School of Information Science and Technology, The University of Osaka（大阪大学信息理工学研究科）
• ALGO ARTIS Corporation（ALGO ARTIS公司）

机构由 AI 辅助整理，请以论文原文为准。

补充信息

备注

29 pages, 10 figures