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CHSH inequality — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/CHSH_inequality
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-07T22:50:24.932Z
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CHSH inequality — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/CHSH_inequality (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_fa7bf3021bb2 (Metraipolis archive dc_fa7bf3021bb2, sha256 7691c7869576671a4188859d663c64da8d4123fbad57eee14ecac09d0a726867)

BibTeX

@misc{dcfa7bf3021bb2,
  title = {CHSH inequality — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/CHSH_inequality},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_fa7bf3021bb2; sha256 7691c7869576671a4188859d663c64da8d4123fbad57eee14ecac09d0a726867},
  year = {2026}
}

Archived text

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

In physics, the Clauser–Horne–Shimony–Holt (CHSH) inequality can be used in the proof of Bell's theorem, which states that certain consequences of entanglement in quantum mechanics cannot be reproduced by local hidden-variable theories. Experimental verification of the inequality being violated is seen as confirmation that nature cannot be described by such theories. CHSH stands for John Clauser, Michael Horne, Abner Shimony, and Richard Holt, who described it in a much-cited paper published in 1969. They derived the CHSH inequality, which, as with John Stewart Bell's original inequality, is a constraint—on the statistical occurrence of "coincidences" in a Bell test—which is necessarily true if an underlying local hidden-variable theory exists. In practice, the inequality is routinely violated by modern experiments in quantum mechanics.

Tema degli esploratori: matematica e informatica teorica (deposito sistematico; ricerca «game theory»).
Fonte: Wikipedia in inglese, voce «CHSH inequality» — https://en.wikipedia.org/wiki/CHSH_inequality
Wikidata Q5011347 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q5011347
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/CHSH_inequality?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 1374383083, consultata il 2026-10-07T22:24:53.593Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 36fc67ed6c3bdd540cf8e7533d527ba08b25cdfb9b037b9bd7e851bce97324a5