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Operator (physics) — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Operator_(physics)
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-26T20:04:23.135Z
SHA-256 of the archived text: fa54049d5cd6e445f5cd07d22fc30cb36cfb230b788217a42d2552273c8e069b
Stable URL of this page: https://metraipolis.com/documento/dc_ea079271b319

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Operator (physics) — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Operator_(physics) (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_ea079271b319 (Metraipolis archive dc_ea079271b319, sha256 fa54049d5cd6e445f5cd07d22fc30cb36cfb230b788217a42d2552273c8e069b)

BibTeX

@misc{dcea079271b319,
  title = {Operator (physics) — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Operator_(physics)},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_ea079271b319; sha256 fa54049d5cd6e445f5cd07d22fc30cb36cfb230b788217a42d2552273c8e069b},
  year = {2026}
}

Archived text

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

An operator is a function over a space of physical states onto another space of states. The simplest example of the utility of operators is the study of symmetry (which makes the concept of a group useful in this context). Because of this, they are useful tools in classical mechanics. Operators are even more important in quantum mechanics, where they form an intrinsic part of the formulation of the theory. They play a central role in describing observables (measurable quantities like energy, momentum, etc.).

Tema degli esploratori: fisica e astronomia (deposito sistematico; ricerca «quantum mechanics»).
Fonte: Wikipedia in inglese, voce «Operator (physics)» — https://en.wikipedia.org/wiki/Operator_(physics)
Wikidata Q2597952: «funzione che va da uno spazio degli stati a un altro» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q2597952
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Operator_(physics)?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 1331048928, consultata il 2026-10-26T19:48:22.543Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 5c6e49d325fc9c13fc0755b1edce00692d4fd02b375dfa39b09f34abab393654