China-made quantum computing chip with over 500 bits released
Recently, reporters learned from HKUST Guodun Quantum Technology Co., Ltd. that the Institute of Quantum Information and Quantum Technology Innovation of the Chinese Academy of Sciences delivered a 504-bit superconducting quantum computing chip "Xiaohong" to the company. This chip refreshed the domestic super It has set a record for the number of bits in a guided quantum chip, and plans to open it to the world through quantum computing cloud platforms.
The measurement and control system and quantum computing chip are the core hardware of quantum computers. Among them, the measurement and control system will greatly affect the overall performance of the quantum computer. In order to verify the overall performance and various indicators of the large-scale measurement and control system, the most direct way is to customize special chips for comprehensive and systematic testing. To this end, the Quantum Innovation Institute customized and developed a 504-bit quantum computing chip "Xiaohong" to verify the kilobit measurement and control system independently developed by Guodun Quantum.
Liang Futian, associate professor of the Institute of Quantum Innovation, said that while integrating more than 500 bits, this custom chip is expected to reach international mainstreams such as IBM in terms of key indicators such as qubit life, gate fidelity, gate depth, and read fidelity. The chip performance of the quantum computing cloud platform can fully meet the verification needs of kilobit measurement and control systems.
Gong Ming, a researcher at the Institute of Quantum Innovation, emphasized that although it has set a new record for the number of qubits in China, the main purpose of the Snapdragon chip is to promote the development of large-scale quantum computing measurement and control systems and does not have the ability to achieve "quantum computing superiority." In 2021, Chinese scientists successfully developed the 113-photon "Jiuzhang-2" quantum computing prototype and the 66-bit "Zuchong-2" quantum computing prototype, making China the only country to have achieved "superconducting quantum and light quantum" in both physical systems. Quantum Superiority" country.
"The cloud access of the '500+bit' quantum computer can efficiently carry out research on problems and algorithms of practical value by users in various fields, accelerate the application of quantum computing in actual scenarios, and lead the rapid development of the quantum computing ecosystem." Wang Zhen, deputy general manager of Telecom Quantum Group, said that in the next step, China Telecom Quantum Group will work with Shield Quantum to develop a complete quantum computing machine based on the "SnapHong" chip and connect to China Telecom Quantum Group's "Tianyan" quantum computing cloud platform. Open to users around the world.