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Jiuzhang (quantum computer) — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Jiuzhang_(quantum_computer)
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-07T22:54:18.807Z
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Jiuzhang (quantum computer) — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Jiuzhang_(quantum_computer) (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_edb9dc91c583 (Metraipolis archive dc_edb9dc91c583, sha256 0d3383c731a825ca86fdcb6cfa2ca70c8e1f94f2e944cce0108c82aff33139c0)

BibTeX

@misc{dcedb9dc91c583,
  title = {Jiuzhang (quantum computer) — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Jiuzhang_(quantum_computer)},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_edb9dc91c583; sha256 0d3383c731a825ca86fdcb6cfa2ca70c8e1f94f2e944cce0108c82aff33139c0},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Jiuzhang_(quantum_computer). Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Jiuzhang (Chinese: 九章) is the first photonic quantum computer to claim quantum supremacy. Previously quantum supremacy has been achieved only once, in 2019, by Google's Sycamore; however, Google's computer was based on superconducting materials, and not photons. Describing the difference between Jiuzhang and Google's Sycamore, Scientific American explained, "Sycamore uses superconducting loops of metal to form qubits; in Jiŭzhāng, the photons themselves are the qubits." Jiuzhang was developed by a team from University of Science and Technology of China (USTC) led by Pan Jianwei and Lu Chao-Yang. The computer is named after Jiuzhang suanshu, an ancient Chinese mathematical classic book. On 3 December 2020, USTC announced in Science that Jiuzhang successfully performed Gaussian boson sampling in 200 seconds (3 minutes 20 seconds), with a maximum of 76 detected photons. The USTC group estimated that it would take 2.5 billion years for the Sunway TaihuLight supercomputer to perform the same calculation. Since 2020, the system has received several upgrades, with improved performance. In 2026, according to the South China Morning Post, USTC scientists reported that their current version 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, more than 10^42 years to finish."

Tema degli esploratori: fisica e astronomia (deposito sistematico; ricerca «quantum computing»).
Fonte: Wikipedia in inglese, voce «Jiuzhang (quantum computer)» — https://en.wikipedia.org/wiki/Jiuzhang_(quantum_computer)
Wikidata Q103821919 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q103821919
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Jiuzhang_(quantum_computer)?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1358297108, consultata il 2026-10-07T22:28:53.030Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 7485631da648b49de3c7fc0fc6f43477dd52f45bb5a3b241d288768a52d85a01