Domestically-produced single-core high-capacity dilution refrigeration machine successfully launched off the production line.

On June 24th, under the guidance of the Quantum Information and Quantum Technology Innovation Research Institute of the Chinese Academy of Sciences, the first domestically produced dilution refrigerator, ez-Q F1500, completed its engineering development and officially came offline by the Quantum Technology Co., Ltd., laying the foundation for the subsequent development of a fault-tolerant superconducting quantum computer with thousands of qubits in China. It is understood that the current commercially available single-core dilution refrigerators have a cooling capacity in the range of 400 to 800 microwatts, which is insufficient to meet the demands of a thousand-qubit superconducting quantum computer. The international practice is to parallel at least two core units, but this significantly increases the system complexity and poses a challenge to long-term stable operation. Therefore, the Quantum Information and Quantum Technology Innovation Research Institute of the Chinese Academy of Sciences completed the prototype development of a "High-Power Single Dilution Refrigerator Unit" by 2025, achieving a technical breakthrough of a cooling capacity of 40 microwatts at 20 millikelvin. Building on this achievement, Quantum Technology Co., Ltd. further collaborated to develop the ez-Q F1500, which can achieve a cooling capacity of 1700 microwatts at 100 millikelvin with just a single core, a cooling capacity of 48 microwatts at 20 millikelvin, and a lowest temperature limit of approximately 5.42 millikelvin, bringing the single-core cooling capacity to an international leading level.