AI 中文总结
研究模块化囚禁离子量子计算中远程纠缠瓶颈问题，综合单光子预示等成果构建架构，缩小与本地门性能差距，预计贝尔对保真度达99.9%，使远程纠缠不再是瓶颈，将限制转移到本地操作。
AI 中文摘要
模块化是经典计算的基础；随着量子处理器在制造良率、可靠性和尺寸上面临限制，它们对模块化的需求将同样迫切。连接模块的瓶颈在于以足够的速率、密度和保真度产生共享纠缠。囚禁离子拥有已证明的最佳光子链路，但依赖笨重的收集光学器件，限制了链路的密集程度，其性能在速率和保真度上比本地门落后两个数量级。我们综合了单光子预示、相干反冲校正、投影蒸馏和阱集成光子学等多项成果，形成一个全面架构，大幅缩小了这一差距。单光子预示使成功概率随探测效率线性缩放，在密集、易于并行化的通道中，紧凑的集成光子学可在局部操作极限下使纠缠速率饱和。从源头解决其固有误差机制，我们预计在与容错操作兼容的速率和密度下，贝尔对保真度可达99.9%。远程纠缠不一定是模块化囚禁离子计算的瓶颈，限制转移到必须改进的本地操作上。
英文摘要
Modularity underpins classical computing; as quantum processors encounter limits on fabrication yield, reliability, and size, they will also need it acutely. The bottleneck to linking modules is producing shared entanglement at sufficient rate, density, and fidelity. Trapped ions hold the best demonstrated photonic links, yet they rely on bulky collection optics that cap how densely links can be packed, and remote entanglement operations trail local gates by two orders of magnitude in rate and fidelity. We synthesize several enabling results $\unicode{x2014}$ single-photon heralding, coherent recoil correction, projective distillation, and trap-integrated photonics $\unicode{x2014}$ into one comprehensive architecture that substantially narrows this gap. Single-photon heralding leads to linear scaling of success probability with detection efficiency, allowing compact integrated photonics to saturate the entanglement rate at a local-operation limit in dense, easy-to-parallelize channels. Addressing its inherent error mechanisms at their source, we project a Bell-pair fidelity of 99.9% at rates and densities compatible with fault-tolerant operations. Remote entanglement then need not remain the bottleneck for modular trapped-ion computing; the limit shifts to the local operations that must improve regardless.
Comments20 pages, 12 figures, v2
