期刊
QUANTUM SCIENCE AND TECHNOLOGY
卷 5, 期 3, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/2058-9565/ab7eeb
关键词
quantum simulation; quantum circuits; HPC
资金
- NASA Ames Research Center
- NASA Advanced Exploration systems (AES) program
- NASA Transformative Aeronautic Concepts Program (TACP)
- AFRL Information Directorate [F4HBKC4162G001]
- Department of Energy Office of Science Early Career Research Program
- DOE Office of Science [DE-AC05-00OR22725]
- U.S. Department of Energy [DE-AC05-00OR22725]
Noisy intermediate-scale quantum (NISQ) computers are entering an era in which they can perform computational tasks beyond the capabilities of the most powerful classical computers, thereby achieving 'quantum supremacy', a major milestone in quantum computing. NISQ supremacy requires comparison with a state-of-the-art classical simulator. We report HPC simulations of hard random quantum circuits (RQC), which have been recently used as a benchmark for the first experimental demonstration of quantum supremacy, sustaining an average performance of 281 Pflop/s (true single precision) on Summit, currently the fastest supercomputer in the world. These simulations were carried out using qFlex, a tensor-network-based classical high-performance simulator of RQCs. Our results show an advantage of many orders of magnitude in energy consumption of NISQ devices over classical supercomputers. In addition, we propose a standard benchmark for NISQ computers based on qFlex.
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