WUHAN, China — May 10, 2026 : CAS Cold Atom Technology, a Wuhan-based quantum hardware developer affiliated with the Chinese Academy of Sciences, has unveiled the Hanyuan-2, a 200-qubit neutral-atom quantum computer designed around a new dual-core architecture intended to improve scalability, computational efficiency, and operational stability in quantum systems.
The Hanyuan-2, announced on May 8, 2026, is described by the company as the world’s first dual-core neutral-atom quantum computer. The platform marks a transition from traditional single-array quantum processor designs toward a modular multi-core structure, reflecting an approach similar to the evolution from single-core to multi-core processors in classical computing.
Dual-Core Quantum Architecture
The Hanyuan-2 integrates two separate 100-qubit neutral-atom arrays within a single machine. One processing core is formed using 100 atoms of the Rubidium-85 isotope, while the second core uses 100 atoms of Rubidium-87.
According to the developer, the two arrays can operate independently or collaboratively depending on computational requirements. In parallel computing mode, both cores execute separate computational tasks simultaneously, allowing workloads to be divided to improve overall processing efficiency. In another operational mode, one core performs primary calculations while the second core handles auxiliary functions such as real-time error correction and syndrome extraction.
Researchers stated that the dual-core configuration is intended to reduce interference between neighbouring qubits and address technical limitations associated with scaling large single-array quantum systems.
Neutral-Atom Technology and System Design
Unlike superconducting quantum computers that require large dilution refrigeration systems operating near absolute zero temperatures, the Hanyuan-2 relies on uncharged neutral atoms manipulated through precision laser systems.
The platform uses laser arrays to cool, trap, and control individual atoms functioning as qubits. Because the system does not depend on large cryogenic refrigeration infrastructure, the computer is housed in a compact cabinet-style integrated design that can operate in conventional indoor laboratory and data-centre environments.
CAS Cold Atom Technology stated that the machine requires only a small laser cooling system and consumes less than 7 kilowatts of power, a level comparable to standard IT server equipment.
Tang Biao, general manager of CAS Cold Atom Technology, said the Hanyuan-2 was designed as an integrated platform with simplified operational requirements while maintaining advanced quantum processing capabilities.
Performance Improvements Over Hanyuan-1
The Hanyuan-2 follows the earlier Hanyuan-1 neutral-atom quantum computer, a 100-qubit platform that entered commercial use in late 2025.
According to performance figures released by the company, the second-generation system introduces significant technical improvements over its predecessor. Atomic manipulation accuracy increased from 90 percent in the Hanyuan-1 to 99 percent in the Hanyuan-2.
The stable survival time of atoms, referring to the duration qubits can maintain quantum states before decoherence occurs, has also been extended from approximately 20 seconds to more than 100 seconds.
The company further stated that the complete development chain for the system, including chip manufacturing, packaging, laser modulation, and phase-noise control technologies, was developed domestically.
Commercial Development and Industry Context
CAS Cold Atom Technology stated that the Hanyuan-1 platform secured orders exceeding 40 million yuan, including purchases by a subsidiary of China Mobile and an export delivery to Pakistan.
The Hanyuan-2 is positioned for potential applications in materials science research, optimisation problems, and industrial computational tasks. The company stated that the adoption of a modular dual-core structure represents a broader effort within the quantum computing industry to improve system scalability and reduce operational instability caused by quantum noise.
The announcement of the Hanyuan-2 was reported by Chinese state-affiliated media outlets, including Science and Technology Daily and Global Times. CAS Cold Atom Technology has not yet released independent peer-reviewed verification data for the system’s reported performance metrics.
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