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Topological defect — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Topological_defect
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-07T22:58:01.246Z
SHA-256 of the archived text: b69135f6a4109fab93199cd2e21cfb9f0122bbbae335b0df02d9709953a217e0
Stable URL of this page: https://metraipolis.com/documento/dc_a461e27116a1

How to cite

Topological defect — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Topological_defect (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_a461e27116a1 (Metraipolis archive dc_a461e27116a1, sha256 b69135f6a4109fab93199cd2e21cfb9f0122bbbae335b0df02d9709953a217e0)

BibTeX

@misc{dca461e27116a1,
  title = {Topological defect — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Topological_defect},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_a461e27116a1; sha256 b69135f6a4109fab93199cd2e21cfb9f0122bbbae335b0df02d9709953a217e0},
  year = {2026}
}

Archived text

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

In mathematics and physics, solitons, topological solitons and topological defects are three closely related ideas, all of which signify structures in a physical system that are stable against perturbations. Solitons do not decay, dissipate, disperse or evaporate in the way that ordinary waves (or solutions or structures) might. The stability arises from an obstruction to the decay, which is explained by having the soliton belong to a different topological homotopy class or cohomology class than the base physical system. More simply: it is not possible to continuously transform the system with a soliton in it, to one without it. The mathematics behind topological stability is both deep and broad, and a vast variety of systems possessing topological stability have been described. This makes categorization somewhat difficult.

Tema degli esploratori: matematica e informatica teorica (deposito sistematico; ricerca «differential equation»).
Fonte: Wikipedia in inglese, voce «Topological defect» — https://en.wikipedia.org/wiki/Topological_defect
Wikidata Q1770567 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q1770567
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Topological_defect?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 1376496314, consultata il 2026-10-07T22:35:36.313Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: eeb29311eacb4dd988263a8cd4ff9304aa314a9d9ef2285ef2874c65860e5d66