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technology3h ago
Jiuzhang 4.0 computer marks leap in China-US quantum race
- Jiuzhang 4.0, China’s latest photonic quantum computer, reportedly outperforms the world’s fastest classical supercomputer in a published calculation.
- The team reports Jiuzhang 4.0 completed a Gaussian boson sampling task in 25 microseconds.
- The calculation is said to take more than 10^42 years for El Capitan to finish, according to the university.
- Jiuzhang 4.0 uses 1,024 squeezed-state inputs across an 8,176-mode network and can detect up to 3,050 photons.
- Researchers claim no realistic classical resources can match the accuracy achieved by Jiuzhang 4.0’s MPS algorithm.
- The Jiuzhang 4.0 project is led by Pan Jianwei’s team at the University of Science and Technology of China.
- The report was published in the peer-reviewed journal Nature on May 13.
- Jiuzhang 4.0 is described as a programmable photonic quantum computing prototype.
- The article frames Jiuzhang 4.0 as advancing Beijing’s push toward quantum supremacy.
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