  Random numbers play a crucial role in numerous scientific applications.
Source-independent quantum random number generators (SI-QRNGs) can offer true
randomness by leveraging the fundamental principles of quantum mechanics,
eliminating the need for a trusted source. Silicon photonics shows great
promise for QRNG due to its benefits in miniaturization, cost-effective device
manufacturing, and compatibility with CMOS microelectronics. In this study, we
experimentally demonstrate a silicon-based discrete variable SI-QRNG. Using a
well-calibrated chip and an optimized parameter strategy, we achieve a
record-breaking random number generation rate of 7.9 Mbits/s. Our research
paves the way for integrated SI-QRNGs.
