我国科学家突破！量子互联网组网方案迎来新变革

Core Viewpoint - A groundbreaking quantum communication technology has been developed, proposing a new quantum entanglement interconnection scheme that opens new pathways for the scalable development of quantum internet [1] Group 1: Research and Development - The research paper titled "Quantum Entanglement Network Realized by State-Reusing Quantum Light Sources" was co-authored by teams from multiple prestigious institutions and published in the top international journal "Light: Science & Applications" [1] - The traditional quantum internet construction relies on wavelength division multiplexing, which faces a bottleneck due to rapidly increasing resource demands, limiting scalability [1] Group 2: New Quantum Networking Scheme - The research team introduced a new scheme utilizing quantum state reuse networking, successfully preparing three quantum entangled states in a single wavelength channel using silicon nitride micro-ring devices [2] - This advancement allows for a significant increase in the number of network users without adding more wavelength channels [2] Group 3: Experimental Validation - The feasibility of the proposed scheme was validated on the "Ginkgo No. 1" metropolitan quantum interconnection research platform, achieving full quantum interconnection among four users using only six wavelength channels, saving half the required channels compared to traditional methods [5] - As the number of users increases, the saved wavelength channels could approach 67%, demonstrating an effective "more is less" outcome [5] Group 4: Future Prospects - The quantum state reuse entanglement interconnection scheme presents new opportunities for the development of large-scale quantum entanglement networks, with ongoing efforts to enhance overall performance and explore applications [6] - The scheme also simplifies hardware costs and reduces optical losses, thereby improving the quantum secure key rate, supporting various disruptive applications such as quantum secure communication and distributed quantum computing [7]