Causal signal transmission by quantum fields. IV: The causal Wick theorem

Autor:	Plimak, L. I., Stenholm, S.
Rok vydání:	2011
Předmět:	Quantum Physics Condensed Matter - Statistical Mechanics High Energy Physics - Theory Mathematical Physics
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.84.065025
Popis:	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. Comment: Final version, to appear in Phys Rev D
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1104.3764 Zobrazit plný text záznamu View this record from Arxiv