China Achieves Quantum Computing Breakthrough as Origin Wukong Router Reaches 98 Percent Transmission Efficiency
Dragon Media News Desk
Chinese research teams have achieved a new technological breakthrough on the domestically developed superconducting quantum computer Origin Wukong, with tests showing information transmission efficiency of up to 98 percent for a single quantum router.
The achievement was made jointly by several Chinese research teams, which developed a coherent quantum routing system for bucket-brigade quantum random access memory, or QRAM. The system is designed to act as a fast and efficient pathway for directing quantum information to the required location inside a quantum computing architecture.
Researchers built three independent quantum routers and a two-layer quantum routing network on Origin Wukong, China’s third-generation independently developed superconducting quantum computer, and conducted a series of tests.
The results showed that a single quantum router achieved information transmission efficiency of up to 98 percent, while the two-layer network reached an overall efficiency of 93 percent.
In random-access tests, the average fidelity reached 94.8 percent for the single quantum router and 82.4 percent for the two-layer network. In quantum computing, fidelity indicates how accurately a quantum state can be preserved or reproduced during an operation.
Researchers said the breakthrough provides a new approach to building scalable QRAM using existing superconducting hardware. Efficient access to different memory locations is considered one of the major technical challenges in developing larger and more complex quantum computing systems.
The achievement also suggests that China’s quantum computing research is moving beyond improvements in individual performance indicators toward testing more sophisticated functional architectures on real quantum machines.
Researchers expect the new routing approach could eventually help reduce computational costs, improve processing efficiency and enable closer integration between quantum chips and circuit design.
