AI 中文总结
本文针对中性原子编译中法定间距无法消除残余范德瓦尔斯耦合的问题，将纠缠区间距作为跨层变量，结合多种技术探究间距与物理暴露、可靠性、工期的关联，区分了硬件合法性与残余噪声安全性，推动感知间距的编译器评估。
AI 中文摘要
中性原子处理器依赖空间排列的量子比特阵列与并行里德伯纠缠门实现可扩展执行。其编译器会为并行门施加几何间距规则，但法定间距并不能消除残余范德瓦尔斯耦合。本文将纠缠区间距视为锚定实验中性原子几何的跨层可靠性-并行度变量，研究几何合法性与残余噪声之间的差距。我们结合固定调度残差重放、带匹配关联解码的表面码模拟及重新编译，将间距与物理残余暴露、逻辑可靠性和工期成本关联起来。结果表明，接近下限的间距可产生结构化关联暴露，在物理层可见，且在最紧密的情况下经量子纠错（QEC）后仍可观测到；适度的几何松弛能强烈抑制这种残余贡献，但较松间距的时序成本由布局和调度调节，而非简单的单调减速。这些发现区分了硬件合法性与残余噪声安全性，推动开展感知间距的编译器评估，需同时报告物理几何、QEC吸收及调度成本。
英文摘要
Neutral-atom processors rely on spatially arranged qubit arrays and parallel Rydberg entangling gates for scalable execution. Their compilers enforce geometric spacing rules for simultaneous gates, yet legal separation does not make residual van der Waals coupling disappear. This paper studies that gap between geometric legality and residual noise by treating entangling-zone spacing as a cross-layer reliability-parallelism variable anchored to experimental neutral-atom geometry. We combine fixed-schedule residual replay, surface-code simulation with matched correlated decoding, and fresh recompilation to connect spacing to physical residual exposure, logical reliability, and makespan cost. The results show that near-floor spacing can produce structured correlated exposure that is visible both at the physical layer and, in the tightest case, after quantum error correction (QEC). Modest geometric slack strongly suppresses this residual contribution, but the timing cost of looser spacing is mediated by placement and scheduling rather than by a simple monotonic slowdown. These findings distinguish hardware legality from residual-noise safety and motivate spacing-aware compiler evaluations that report physical geometry, QEC absorption, and scheduling cost together.
CommentsAccepted at IEEE QCE 2026. 4 pages, 6 figures
