PIRSA:10100076 Conference Cosmology

DOI10.48660/10100076

Conference/School: IR issues and loops in de Sitter space - 2010

Rajaraman, A. (2010). Massless fields in Euclidean de Sitter space. Perimeter Institute. https://pirsa.org/10100076

Rajaraman, Arvind. Massless fields in Euclidean de Sitter space. Perimeter Institute, Oct. 29, 2010, https://pirsa.org/10100076 

@misc{ pirsa_PIRSA:10100076,
  doi = {10.48660/10100076},
  url = {https://pirsa.org/10100076},
  author = {Rajaraman, Arvind},
  keywords = {Cosmology},
  language = {en},
  title = {Massless fields in Euclidean de Sitter space},
  publisher = {Perimeter Institute},
  year = {2010},
  month = {oct},
  note = {PIRSA:10100076 see, \url{https://pirsa.org}}
}

Abstract

In theories with light or massless fields, loop diagrams can develop infrared divergences. We demonstrate how these can be resolved for a theory of massless interacting scalar fields in Euclidean de Sitter space. We also comment on applications to the in-in formalism in Lorentzian de Sitter space.

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