Economic Observer Network reporter Li Jingheng On October 26, the official website of the University of Science and Technology of China issued an announcement showing that the research team composed of Pan Jianwei, Lu Chaoyang, and Liu Naile from the Institute of Quantum Information and Quantum Technology Innovation of the Chinese Academy of Sciences of the University of Science and Technology of China and the Shanghai Institute of Microsystems of the Chinese Academy of Sciences and the National Parallel Computer Engineering The technology research center cooperated to develop the theory and experimental methods of stimulated amplification of quantum light sources, and constructed the quantum computing prototype “Nine Chapter 2” with 113 photon 144 modes, and realized the phase programmable function, and completed the application Quick solution of Gaussian Bose sampling task that demonstrates the “superiority of quantum computing”.
The announcement also stated that according to the now officially published optimal classical algorithm theory, “Nine Chapter 2” can process Gaussian Bose sampling at 1024 times faster than the current fastest supercomputer.
“This achievement is the first time that China has reached the milestone of’quantum computing superiority’ in the superconducting qubit system after the’nine chapters’ of the optical quantum computing prototype, making China the only country that has reached this milestone in both physical systems at the same time. “The University of Science and Technology of China said, “This achievement has once again refreshed the technical level of optical quantum manipulation in the world, and further provided experimental evidence for the acceleration of quantum computing.”
Related papers were published in the internationally renowned academic journal “Physics Review Letters” in the form of “Editor’s Recommendation” on October 26. Barry Sanders, a well-known quantum physicist and professor at the University of Calgary in Canada, was also invited to write a long review article on the Physics website, praising the work as an “exciting experimental masterpiece” and an “impressive cutting-edge advancement.”
The China Academy of Information and Communications Technology recently stated in a research report on the development trend of quantum cloud computing that quantum computing is a new computing method that combines microscopic quantum effects with computing science and uses quantum control technology for information processing. In recent years, scientific research exploration and technological innovation have remained active, and representative research results and application exploration progress have been highlighted. In the future, it is expected to bring a leap in computing power to solve difficult computing problems and trigger the next wave of technological revolution.
The University of Science and Technology of China stated that, in principle, quantum computers can obtain greater computing power than classical computers in terms of some problems with significant social and economic value through specific algorithms. For the physical realization of quantum computing, the international academic community has adopted a three-step roadmap. Among them, the first milestone is academically known as the “superiority of quantum computing”. Its meaning is to manipulate nearly a hundred physical bits with high precision to efficiently solve specific problems that cannot be solved by supercomputers in a reasonable time. High complexity math problems.
“Nine Chapter 2” completed the fast solution of the Gaussian Bose sampling task used to demonstrate the “superiority of quantum computing”. According to the best classical algorithm theory that has been officially published, “Nine Chapter 2” can process Gaussian Bose sampling 1024 times faster than the current fastest supercomputer. The Gaussian Bose sampling task is a very difficult computational problem, which is often used by scientists in the field of quantum computing to challenge classical computers.
At the same time, the University of Science and Technology of China also stated that the research team composed of Pan Jianwei, Zhu Xiaobo, Peng Chengzhi, etc. cooperated with the Shanghai Institute of Technical Physics of the Chinese Academy of Sciences to build a 66-bit programmable superconducting quantum computing prototype “Zuchong No. 2”, which realized the “quantum random Fast solution to the task of “line sampling”. According to the existing theory, the quantum random circuit sampling problem handled by “Zuchongzhi No. 2” is 7 orders of magnitude faster than the fastest supercomputer at present, and the computational complexity is higher than Google’s publicly reported 53-bit superconducting quantum computing prototype “Platanus” Improved by 6 orders of magnitude.
“This achievement is the first time that China has reached the milestone of’quantum computing superiority’ in the superconducting qubit system after the’nine chapters’ of the optical quantum computing prototype, making China the only country that has reached this milestone in both physical systems at the same time. “The University of Science and Technology of China said.
The University of Science and Technology of China further introduced that superconducting qubits are one of the internationally recognized physical systems that are expected to achieve scalable quantum computing. Pan Jianwei, Zhu Xiaobo, Peng Chengzhi and others have long aimed at the field of superconducting quantum computing, and in May 2021 built the 62-bit superconducting quantum computing prototype “Zuchongzhi” with the largest number of qubits in the world at that time. Based on the “Zuchong Zhi”, the team adopted a new flip-chip 3D packaging process to solve the problem of large-scale bit integration and successfully developed the “Zuchong No. 2”.
“Researchers hope that this work will continue to stimulate more work in the simulation of classical algorithms, and it is expected that there will be room for improvement in the future. Quantum superiority research is not a one-shot task, but faster classical algorithms and continuous improvement. The competition between quantum computing hardware, but ultimately quantum parallelism will produce computing power that classical computers cannot match.” said the University of Science and Technology of China.
The China Academy of Information and Communications Technology stated in a recent research report that the main technical routes of quantum processors include superconductivity, ion traps, silicon-based semiconductors, photons, etc., showing a diversified development trend. Superconducting quantum computing is considered by the industry as one of the technical routes that may realize universal quantum computing. International technology giants such as IBM and Google continue to make efforts in superconducting quantum computing, and prototype research and development occupy a leading position. They have formulated a grand blueprint for the development of superconducting quantum computing. IBM released a roadmap for superconducting quantum computing in 2020. It plans to launch a 128-bit physical bit “Eagle” platform in 2021, and a 1,123-bit “Vulture” platform in 2023. The goal is to reach millions of bits in 2030. Google reported in 2019 that the superconducting processor “Platanus” based on 53-bit quantum physical bits was the first to experimentally verify the superiority of quantum computing.
“Chinese scientists continue to work hard, and the gap between superconductivity, ion trap, optical quantum and other technical routes and European and American academic research is narrowing, and some research results have reached the global advanced level.” The Chinese Academy of Information and Communications Technology said.Return to Sohu to see more
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