A high-flux entangled-photon source is a key resource for quantum optical study and application. Here, it is realized in a lithium niobate on isolator (LNOI) chip, with 2.79 × ${10}^{11}$ Hz/mW photon-pair rate and 1.53 × ${10}^9$ Hz/(nm mW) spectral brightness. These data are boosted by over 2 orders of magnitude compared with existing technologies. A 160-nm-broad bandwidth is engineered for eight-channel multiplexed energy-time entanglement. Harnessed by high-extinction-frequency correlation and Franson interferences up to 99.17% visibility, such energy-time-entanglement multiplexing further enhances the high-flux data rate and warrants broad application in quantum-information processing on a chip.

中文翻译：

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从绝缘体芯片上的铌酸锂产生超亮多路能量-时间纠缠光子

高通量纠缠光子源是量子光学研究和应用的关键资源。在这里，它是在隔离器上的铌酸锂 (LNOI) 芯片中实现的，具有 2.79 × ${10}^{11}$ Hz/mW 光子对率和 1.53 × ${10}^9$ Hz/(nm mW) 光谱亮度。与现有技术相比，这些数据提高了 2 个数量级以上。160 纳米的宽带宽专为八通道多路复用能量-时间纠缠而设计。利用高消光频率相关性和高达 99.17% 可见度的弗兰森干扰，这种能量时间纠缠复用进一步提高了高通量数据速率，并保证在芯片上的量子信息处理中得到广泛应用。