Conformal vacua and entropy in de Sitter space

@article{Bousso2002ConformalVA,
  title={Conformal vacua and entropy in de Sitter space},
  author={R. Bousso and A. Maloney and A. Strominger},
  journal={Physical Review D},
  year={2002},
  volume={65},
  pages={104039}
}
The de Sitter/conformal field theory (dS/CFT) correspondence is illuminated through an analysis of massive scalar field theory in d-dimensional de Sitter space. We consider a one-parameter family of dS-invariant vacua related by Bogolyubov transformations and compute the corresponding Green functions. It is shown that none of these Green functions correspond to the one obtained by analytic continuation from AdS. Among this family of vacua are in (out) vacua which have no incoming (outgoing… Expand
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