Origin Wukong Tests Show Up to 98% Single-Router Transmission for QRAM

Router Result: A single quantum router on Origin Wukong reached up to about 98 percent information transmission efficiency.Network Result: A two-layer routing network reached 93 percent transmission efficiency and, as a separate metric, 82.4 percent random-access fidelity.Research Record: Origin Quantum, USTC, and Hefei partners published coherent quantum routers for bucket-brigade QRAM in Physical Review X on August 25, 2026.Origin Quantum Computing Technology (Hefei) Co., Ltd. (Origin Quantum), the University of Science and Technology of China, and the Institute of Artificial Intelligence, Hefei Comprehensive National Science Center published the result in Physical Review X on August 25, 2026.

The Anhui Provincial Key Laboratory of Quantum Computing Chips briefed Science and Technology Daily on September 2, 2026.

The teams tested coherent quantum routers for bucket-brigade quantum random access memory on the third-generation Origin Wukong chip. A single router reached up to about 98 percent information transmission efficiency, a residual-population estimate rather than a certified system fidelity.Researchers at the University of Science and Technology of China and Origin Quantum assembled the routers on the third-generation Origin Wukong chip, a 72-transmon superconducting processor with 126 couplers. Ten transmons sat in three connected triangles, each triangle one router.

The Physical Review X paper describes a transition composite gate (TCG) scheme. Auxiliary energy levels let the TCG scheme replace a deep CSWAP decomposition with shallower two-qubit transition gates. Address bits sit in nonadjacent qutrit states |0⟩ and |2⟩ to enable erasure-detection post-selection.Table: Transmission efficiency and random-access fidelity are different metrics.ConfigurationTransmission efficiencyRandom-access fidelitySingle routerUp to ~98%94.8% Average across three routers (peak 95.74%)Two-layer network93%82.4%Science and Technology Daily said Origin Quantum jointly ran the work with USTC and the Institute of Artificial Intelligence, Hefei Comprehensive National Science Center. Quantum random access memory remains a building block for Grover’s search and quantum machine learning, so shallower routing is meant to limit circuit depth as memory trees grow.Tian Feng, former dean of SenseTime’s Intelligence Industry Research Institute, told the Global Times a 98 percent routing efficiency “does not mean large-scale QRAM is ready for commercialization.” He listed error control, hardware stability, and system costs as the limits as networks grow.Origin Quantum, USTC, and Hefei partners measured coherent bucket-brigade QRAM routing on 10 Wukong qubits, with single-router transmission up to about 98 percent and a two-layer network at 93 percent transmission / 82.4 percent random-access fidelity.Find out more here.—Further articles, reports, and the latest quantum computing news may be found at The Qubit Report.Quantum Computing Weekly Round-Up for the week ending September 5, 2026 tracks factories, racks, and post-quantum links moving at the same time. Pasqal signed a Sparkle and Hellas Sat have run a live quantum-safe satellite connection on a 72,000 kilometer geostationary hop between Greece and Cyprus. The trial extends Sparkle Classiq signed a Scientek go-to-market agreement and a separate Kensho market-development partnership to expand Classiq quantum software in Taiwan. Scientek will work semiconductor, research, university Sign up to receive our newsletter and other reports.We keep your data private and share your data only with third parties that make this service possible. Read our privacy policy for more info.Check your inbox or spam folder to confirm your subscription. Our MissionContact UsPrivacy PolicyWebsite Terms of UseCopyright 2017-2026 | The Qubit Report | All Rights Reserved