一种超过10,000光子的芯片级时空复用高斯玻色采样处理器
A Chip-scale Space-time Multiplexed Gaussian Boson Sampling Processor Beyond 10,000 Photons
- Shanghai Jiao Tong University（上海交通大学）
- TuringQ Co., Ltd.（图灵量子有限公司）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
本文报道了首个芯片级时空复用高斯玻色采样系统，在薄膜铌酸锂芯片上集成高速调制与延迟线，实现超万光子检测，并展示了其在世界模型预测中的优势。
AI中文摘要：
高斯玻色采样（GBS）已成为展示量子计算优势的领先光子学范式。然而，最先进的GBS装置面临实际障碍，包括严格的光学对准、相位不稳定性和有限的可编程性，这些阻碍了可扩展的工程部署。芯片级时空复用架构有望解决这些限制，但它强烈要求晶圆级芯片能力，以同时满足低损耗、高精度和高速调制的严格要求。在此，我们报告了首个芯片级时空复用GBS系统，该系统在薄膜铌酸锂芯片上单片集成了高速电光调制器、片上延迟线和时空调制干涉网络，以4GHz时钟速率运行，在1毫秒内检测事件高达11,059个光子。除了基准测试量子优势外，我们还将光子硬件重新配置为基于GBS的世界模型，用于建模物理动力学，与经典回声状态网络（ESN）基线相比，该模型以更少的可训练读出参数实现了更低的预测误差。我们的结果验证了我们迈向可扩展光子量子硬件目标的可行性，并为未来GBS量子系统的多功能可编程应用铺平了道路。
英文摘要：
Gaussian boson sampling (GBS) has emerged as a leading photonic paradigmfor demonstrating quantum computational advantage. Nevertheless, state-ofthe-art GBS setups face practical barriers including stringent optical alignment, phase instability, and limited programmability, which impede scalable engineering deployment. The chip-scale space-time multiplexed architecturepromises to resolve these constraints, yet it strongly demands wafer-scale chipcapabilities to simultaneously satisfy stringent requirements on low loss, highprecision and high-speed modulation. Here we report the first chip-scale spacetime multiplexed GBS system, monolithically integrating high-speed electrooptic modulators, on-chip delay lines, and a time-space multiplexed interferometric network on a thin-film lithium niobate chip, operating at a 4-GHz clockrate with detection events of up to 11,059 photons within 1 millisecond. Beyond benchmarking quantum advantage, we further reconfigure the photonichardware into a GBS-powered world model for modelling physical dynamics,which achieves lower prediction error with fewer trainable readout parameters compared with a classical echo state network (ESN) baseline. Our resultsvalidate the feasibility of our endeavor towards scalable photonic quantumhardware, and pave the way for the versatile programmable applications offuture GBS quantum systems.
