Faddeev-Popov ghost

noun

An extraneous field introduced into gauge quantum field theories to maintain the consistency of the path integral formulation.

Meanings

nounFaddeev-Popov ghost (plural Faddeev-Popov ghosts)

plural Faddeev-Popov ghosts

  1. particlenatural sciencesAn extraneous field introduced into gauge quantum field theories to maintain the consistency of the path integral formulation.

    Synonyms: gauge ghost, ghost field

Synonyms & antonyms

nounAn extraneous field introduced into gauge quantum field theories to maintain the consistency of the path integral formulation.

Origin

Named after Ludvig Faddeev and Victor Popov.

Full word history & related roots →
Cite this entry
APA

Faddeev-Popov ghost. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Faddeev-Popov%20ghost

MLA

“Faddeev-Popov ghost.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Faddeev-Popov%20ghost. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Faddeev-Popov ghost,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Faddeev-Popov%20ghost.

Source: Faddeev-Popov ghost on Wiktionary, CC BY-SA 4.0.