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Energy–momentum relation — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Energy%E2%80%93momentum_relation
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-07T16:47:03.728Z
SHA-256 of the archived text: c660cd551fdacd7c0a1322164849dd386711508be2dd1d110e71ae204c8f7e07
Stable URL of this page: https://metraipolis.com/documento/dc_7eadf84d4efd

How to cite

Energy–momentum relation — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Energy%E2%80%93momentum_relation (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_7eadf84d4efd (Metraipolis archive dc_7eadf84d4efd, sha256 c660cd551fdacd7c0a1322164849dd386711508be2dd1d110e71ae204c8f7e07)

BibTeX

@misc{dc7eadf84d4efd,
  title = {Energy–momentum relation — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Energy%E2%80%93momentum_relation},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_7eadf84d4efd; sha256 c660cd551fdacd7c0a1322164849dd386711508be2dd1d110e71ae204c8f7e07},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Energy%E2%80%93momentum_relation. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

In physics, the energy–momentum relation, or relativistic dispersion relation, is the relativistic equation relating total energy (also called relativistic energy) to mass (also called invariant mass or rest mass) and momentum. It is the extension of mass–energy equivalence for bodies or systems with non-zero momentum. It can be formulated as This equation holds for a body or system, such as one or more particles, with total energy E, mass m, and momentum of magnitude p; the constant c is the speed of light. It assumes the special relativity case of flat spacetime and that the particles are free. Total energy is the sum of rest energy E0 = mc2 and relativistic kinetic energy: E K = E − E 0 = ( p c ) 2 + ( m c 2 ) 2 − m c 2 . {\displaystyle E_{\text{K}}=E-E_{0}={\sqrt {(pc)^{2}+\left(mc^{2}\right)^{2}}}-mc^{2}\,.} The Dirac sea model, which was used to predict the existence of antimatter, is closely related to the energy–momentum relation.

Tema degli esploratori: fisica e astronomia (deposito sistematico; ricerca «particle physics»).
Fonte: Wikipedia in inglese, voce «Energy–momentum relation» — https://en.wikipedia.org/wiki/Energy%E2%80%93momentum_relation
Wikidata Q3502299 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q3502299
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Energy%E2%80%93momentum_relation?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 1378770877, consultata il 2026-10-07T16:15:23.710Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: e1eb50e0276967adeb29f68f9d80dbf220f62483af4f01f94cd277ef79ab2640