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Jiuzhang 4.0 computer marks leap in China-US quantum race

South China Morning Post · · 156 words · By Chao Kong
Quantum Supremacy Technological Competition
open_in_new Read the original article: https://www.scmp.com/news/china/science/article/3353602/does-chinas-jiuzhang-40-…

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7 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

check_circle Corroborated 6
verified Verified By Reference 1
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“China’s new programmable photonic quantum computing prototype, Jiuzhang 4.0, completed a complex calculation in microseconds”
CORROBORATED
Multiple independent web sources confirm that Jiuzhang 4.0 completed a complex calculation (Gaussian boson sampling) in microseconds.
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web search NEUTRAL — China’s new programmable photonic quantum computing prototype, Jiuzhang 4.0, completed a complex calculation in microseconds. 2-MIN READ.
https://www.scmp.com/news/china/science/article/3353602/does…
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web search NEUTRAL — Now meet Jiuzhang 4.0. Photonic. Uses particles of light. Just completed a Gaussian boson sampling calculation in 25.6 microseconds. Classical equivalent? 10⁴² years. Not 2.6 billion. 10 to the power …
https://www.linkedin.com/posts/rich-washburn_quantumcomputin…
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web search NEUTRAL — A quantum computer that uses particles of light took about two dozen microseconds to complete a calculation that may take trillions of trillions of trillions of years on the world’s best supercomputer…
https://www.newscientist.com/article/2493459-another-quantum…
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“Jiuzhang 4.0 completed a Gaussian boson sampling task in just 25 microseconds”
CORROBORATED
Three separate web sources specify the time taken for the Gaussian boson sampling task as 25 or 25.6 microseconds.
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web search NEUTRAL — Jiuzhang 4.0 completed a Gaussian boson sampling task in just 25 microseconds – a calculation they estimated would take the world’s most powerful supercomputer, El Capitan in the United States, a mind…
https://www.scmp.com/news/china/science/article/3353602/does…
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web search NEUTRAL — The Jiuzhang 4.0 processor generates a single Gaussian boson sampling (GBS) output in 25.6 microseconds.It was spectacularly fast at one very specific task – Gaussian boson sampling – but that task ha…
https://postquantum.com/industry-news/jiuzhang-4-0/
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web search NEUTRAL — Just completed a Gaussian boson sampling calculation in 25.6 microseconds. Classical equivalent? 10⁴² years. Not 2.6 billion. 10 to the power of 42.
https://www.linkedin.com/posts/rich-washburn_quantumcomputin…
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“a calculation they estimated would take the world’s most powerful supercomputer, El Capitan in the United States, a mind-boggling more than 10^42 years to finish, according to the university in the eastern city of Hefei”
CORROBORATED
Multiple sources report the estimate that the El Capitan supercomputer would take more than 10^42 years to complete the same task.
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web search NEUTRAL — Jiuzhang 4.0 completed a Gaussian boson sampling task in just 25 microseconds – a calculation they estimated would take the world’s most powerful supercomputer, El Capitan in the United States, a mind…
https://www.scmp.com/news/china/science/article/3353602/does…
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web search NEUTRAL — The Chinese quantum computer could find solutions to the boson-sampling problem in 200 seconds. According to a statement cited by Global Times, Jiuzhang is 100 trillion times faster than the most powe…
https://sputnikglobe.com/20201207/chinas-quantum-computer-be…
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web search NEUTRAL — Gaussian boson sampling (GBS) is a special-purpose model of photonic quantum computing. It uses squeezed light states sent through a linear interferometer to generate samples from a probability distri…
https://www.linkedin.com/posts/einat-frishman_robust-quantum…
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“A Gaussian boson sampling task is a quantum computing task that is computationally difficult for classical computers to handle.”
VERIFIED BY REFERENCE
Wikipedia and academic PDF sources confirm that boson sampling is a model of quantum computation that is computationally difficult for classical computers to implement efficiently.
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web search NEUTRAL — Boson sampling is a restricted model of non-universal quantum computation introduced by Scott Aaronson and Alex Arkhipov after the original work of Lidror Troyansky and Naftali Tishby, that explored p…
https://en.wikipedia.org/wiki/Boson_sampling
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web search NEUTRAL — A Gaussian boson sampling task is a quantum computing task that is computationally difficult for classical computers to handle.
https://www.scmp.com/news/china/science/article/3353602/does…
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web search NEUTRAL — Boson sampling is a specific quantum computation, which is likely hard to implement efficiently on a classical computer. The task is to sample the output photon-number distribution of a linear-optical…
https://www.researchgate.net/publication/311430833_Gaussian_…
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“Jiuzhang 4.0 operates with 1,024 squeezed-state inputs across an 8,176-mode interferometric network”
CORROBORATED
Multiple sources, including official news reports and technical summaries, confirm the use of 1,024 squeezed-state inputs and an 8,176-mode interferometric network.
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web search NEUTRAL — Jiuzhang 4.0 operates with 1,024 squeezed-state inputs across an 8,176-mode interferometric network, and can manipulate and detect up to 3,050 photons – more than 10 times the scale achieved in previo…
https://www.scmp.com/news/china/science/article/3353602/does…
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web search NEUTRAL — These squeezed states are the fuel of Gaussian boson sampling. Three key innovations drive the scale-up: High-efficiency squeezed light sources. The system achieves 92% efficiency in squeezed state ge…
https://postquantum.com/industry-news/jiuzhang-4-0/
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web search NEUTRAL — By integrating 1,024 high-efficiency squeezed-state optical fields into an 8,176-mode spatiotemporally hybrid-coded circuit, the team was able to manipulate and detect up to 3,050 photons.
http://english.scio.gov.cn/chinavoices/2026-05/14/content_11…
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“can manipulate and detect up to 3,050 photons”
CORROBORATED
Three independent sources explicitly state that Jiuzhang 4.0 can manipulate and detect up to 3,050 photons.
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web search NEUTRAL — The researchers said they manipulated and detected quantum states of up to 3,050 photons -- a significant leap from the 255 photons achieved with the previous "Jiuzhang 3.0."
http://english.scio.gov.cn/chinavoices/2026-05/14/content_11…
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web search NEUTRAL — The researchers said they manipulated and detected quantum states of up to 3,050 photons -- a significant leap from the 255 photons achieved with the previous "Jiuzhang 3.0." (Xinhua/Zhou Mu).
https://en.gmw.cn/2026-05/14/content_38764170.htm
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web search NEUTRAL — Their new processor, Jiuzhang 4.0, injected 1,024 high-efficiency squeezed states of light into a programmable 8,176-mode photonic circuit and detected up to 3,050 photons in a single run – more than …
https://postquantum.com/industry-news/jiuzhang-4-0/
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“more than 10 times the scale achieved in previous experiments”
CORROBORATED
Sources confirm the scale is more than 10 times previous experiments, specifically citing the jump from 255 photons in Jiuzhang 3.0 to 3,050 photons in Jiuzhang 4.0.
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info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.