China's top 10 science and technology stories in 2021
Abstract
A team of 14 Chinese researchers took home the 2021 Association for Computing Machinery’s Gordon Bell Prize for using a new exaflop-scale Sunway supercomputer to ‘achieve real-time simulation of a random quantum circuit and close the “quantum supremacy” gap.’ By introducing a systematic design process that covers the algorithm, paral-lelization and architecture required for the simulation, the team was able to simulate a 10 × 10 × (1 + 40 + 1) circuit in 304 seconds. It seriously challenged Google’s claim that some complex problems would take a classical computer 10 000 years to solve, while the company’s quantum processor Sycamore only needed 200 seconds. This prize-winning work may bring algorithmic and architectural innovation to the supercomputing community and speed up the development of quantum devices in the future.
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