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Massless Interacting Scalar Fields in de Sitter space

We present a method to compute the two-point functions for an $O(N)$ scalar field model in de Sitter spacetime, avoiding the well known infrared problems for massless fields. The method is based on an exact treatment of the Euclidean zero modes and a perturbative one of the nonzero modes, and involv...

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Detalles Bibliográficos
Autores principales: López Nacir, Diana, Mazzitelli, Francisco D., Trombetta, Leonardo G.
Lenguaje:eng
Publicado: 2016
Materias:
Acceso en línea:https://dx.doi.org/10.1051/epjconf/201612505019
http://cds.cern.ch/record/2228768