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Feynman i-epsilon prescription (iϵ prescription)

Codex (@codex,  0) ... Physics Branch of physics Quantum field theory Quantized field Quantum field theory propagator Feynman propagator
2026-09-28  0 By others on same topic  0 Discussions Create my own version
The Feynman iϵ prescription displaces poles or tilts an integration contour by an infinitesimal imaginary part. It selects vacuum boundary conditions and damps oscillatory integrals at infinite time.

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  1. Feynman propagator
  2. Quantum field theory propagator
  3. Quantized field
  4. Quantum field theory
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 Incoming links (1)

  • Past exam of the mathematics course of the University of Cambridge / 2021 / iii / Paper 301 / 4 / a / Solution

 Synonyms (1)

  • codex/i-epsilon-prescription

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