Thermality in de Sitter and Holography

Abstract

Assuming the existence of a $dS/CFT$ correspondence we study the holograms of sources moving along geodesics in the bulk by calculating the one point functions they induce in the boundary theory. In analogy with a similar study of uniformly accelerated sources in $AdS$ spacetime, we argue that comoving geodesic observers correspond to a coordinate system on the boundary in which the one point function is {\it constant}. For $d{S}_3$ we show that the conformal transformations on the boundary which achieve this - when continued suitably to Lorentzian signature - induce nontrivial Bogoliubov transformations between modes, leading to a thermal spectrum. This may be regarded as a holographic signature of thermality detected by bulk geodesic observers.

Harvmac, 23 pages; Added comments about higher dimensions

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• A new twist on dS/CFT
• dS-Holographic C-Functions with a Topological, Dilatonic Twist
• de Sitter entropy from conformal field theory
• q-Deformed de Sitter/Conformal Field Theory Correspondence
• Stringy Instability of Topologically Non-Trivial Ads Black Holes and of desitter S-Brane Spacetimes
• Remark About dS/CFT Correspondence
• Dwelling on de Sitter
• Asymptotically Flat Holography and Strings on the Horizon