Holography in de Sitter and anti-de Sitter Spaces and Gel'fand Graev Radon transform
arXiv:1903.07336 · doi:10.1016/j.physletb.2019.134977
Abstract
Bulk reconstruction formulas similar to HKLL are obtained for de Sitter and anti-de Sitter spaces as the inverse Gel'fand Graev Radon transform. While these generalize our previous result on the Euclidean anti-de Sitter space, their validity in here is restricted only to odd dimensions in both instances. The exact Wightman function for the de Sitter space is then derived analytically. The GGR transform fixes the coefficient of the Wightman function. For the anti-de Sitter space it is shown that a reconstruction formula exists for the case of time-like boundary as well. The restriction on the domain of integration on the boundary is derived. As a special case, we point out that the formula is valid for the BTZ black hole as well.
arXiv comment1+23 pages. Addded new results. In particular, for the de Sitter case we obtain the Wightman function for bulk-bulk correlation function exactly, without recourse to asymptotic expansions
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