Core Insights - The research team from the University of Science and Technology of China has successfully integrated a high-brightness polarization-entangled quantum light source on an electrically pumped chip, marking a significant step towards integrated quantum information processing [1] Group 1: Quantum Light Source Development - The entangled quantum light source is a core resource in quantum information science, traditionally requiring external laser pumps, which limits integration and scalability [1] - The new electrically pumped scheme allows for direct current injection on-chip, enhancing the integration and scalability of the entangled source [1] - The team achieved a brightness of 4.5×10^10 pairs/second/milliwatt and a bandwidth of 73 nanometers, significantly improving brightness by six orders of magnitude and bandwidth by one order compared to previous silicon-based sources [1] Group 2: Experimental Results and Applications - The entangled source demonstrated a fidelity greater than 96% across multiple wavelength channels and exhibits broadband multiplexing capabilities, with a compact device size of 15mm x 20mm [2] - This device is suitable for applications in wavelength division multiplexing for fiber network quantum key distribution, satellite-based quantum communication, and entanglement-based quantum precision measurement [2]