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INSTANTON [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2022-10-17

English

Subject field(s)
  • Atomic Physics
  • Mathematics
CONT

An instanton (or pseudoparticle) is a notion appearing in theoretical and mathematical physics. An instanton is a classical solution to equations of motion with a finite, non-zero action, either in quantum mechanics or in quantum field theory. More precisely, it is a solution to the equations of motion of the classical field theory on a Euclidean spacetime.

Key term(s)
  • pseudo-particle

French

Domaine(s)
  • Physique atomique
  • Mathématiques
CONT

[...] le terme «instantons» fait référence à des solutions localisées d'action finie des équations classiques de champs euclidiens d'une théorie, où on entend par théorie le domaine d'application desdites équations, par exemple les théories quantique ou classique des champs, les théories de jauges, etc. qui s'avèrent d'ailleurs à être des exemples typiques en physique des particules.

Key term(s)
  • pseudo-particule

Spanish

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