Origin Wukong Tests Quantum Router at 98 Percent Transmission Efficiency

What changed

Chinese research teams reported a coherent quantum routing result for bucket brigade quantum random access memory on Origin Quantum's Wukong superconducting processor, according to a 4 September 2026 release cited by Global Times and Origin Quantum. A single quantum router reached up to 98 percent information transmission efficiency in tests. A two layer routing network reached 93 percent overall efficiency, with random access fidelity averaging 94.8 percent on the single router and 82.4 percent on the two layer network.

The work targets a scaling pain point in QRAM designs: conventional routers grow circuit depth quickly as networks expand, which accumulates gate errors and limits practical memory architectures needed for quantum search and quantum machine learning algorithms.

Why it matters

QRAM remains a bottleneck story for algorithms that assume fast addressable quantum memory. A router that preserves high transmission efficiency with modest network depth changes the engineering trade space for teams building superconducting stacks rather than only improving raw qubit counts.

For capital allocators, the result is hardware specific and still laboratory scale. It does, however, offer a concrete milestone on Origin's third generation Wukong platform, which matters for vendors competing on full stack integration in China.

Who is affected

Quantum hardware R&D groups working on superconducting control electronics and memory subsystems. Algorithm teams designing QRAM dependent workloads. Policy and supply chain staff tracking China's domestic quantum stack progress alongside Origin Quantum and partner labs.

What to do next

Treat the 98 percent figure as a router level benchmark tied to Wukong test conditions, not a system wide fault tolerance claim. If your roadmap assumes QRAM backed quantum ML, ask vendors for end to end fidelity under realistic circuit depth budgets rather than single component peaks.

What to watch

Independent replication on other superconducting platforms, and whether Origin publishes peer reviewed detail beyond press materials. Also watch whether routing efficiency holds as address width and network layers scale beyond the tested two layer topology.

Sources

1. Primary. Global Times, China achieves 98% transmission efficiency in single quantum router breakthrough (4 September 2026). Reports efficiency figures and Wukong test context.
2. Secondary. Phys.org coverage of related September 2026 quantum architecture work, Dual purpose qubit design could speed operations while cutting quantum errors (3 September 2026). Broader context on error and speed advances in the same news cycle.