Causal signal transmission by quantum fields. IV. the causal Wick theorem

Tutkimustuotos: Lehtiartikkeli

Tutkijat

  • L. I. Plimak
  • S. Stenholm

Organisaatiot

  • Ulm University
  • Royal Institute of Technology
  • Aalto University

Kuvaus

Wick's theorem in the Schwinger-Perel-Keldysh closed-time-loop formalism is written in a form where the place of contractions is taken by the linear response function of the field. This result demonstrates that the physical information supplied by Wick's theorem for operators is propagation of the free field in space and time.

Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli065025
JulkaisuPhysical Review D - Particles, Fields, Gravitation and Cosmology
Vuosikerta84
Numero6
TilaJulkaistu - 19 syyskuuta 2011
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 17001534