Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2011-07-07
Physics
High Energy Physics
High Energy Physics - Theory
21 pages, 8 figures, reference added, conclusion section expanded, published version
Scientific paper
We study the proposal that a de Sitter (dS) universe with an Anti-de Sitter (AdS) bubble can be replaced by a dS universe with a boundary CFT. To explore this duality, we consider incident gravitons coming from the dS universe through the bubble wall into the AdS bubble in the original picture. In the dual picture, this process has to be identified with the absorption of gravitons by CFT matter. We have obtained a general formula for the absorption probability in general $d+1$ spacetime dimensions. The result shows the different behavior depending on whether spacetime dimensions are even or odd. We find that the absorption process of gravitons from the dS universe by CFT matter is controlled by localized gravitons (massive bound state modes in the Kaluza-Klein decomposition) in the dS universe. The absorption probability is determined by the effective degrees of freedom of the CFT matter and the effective gravitational coupling constant which encodes information of localized gravitons. We speculate that the dual of $d+1$ dimensional dS universe with an AdS bubble is also dual to a $d$ dimensional dS universe with CFT matter.
Kanno Sugumi
Sasaki Misao
Soda Jiro
No associations
LandOfFree
Holographic Dual of de Sitter Universe with AdS Bubbles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Holographic Dual of de Sitter Universe with AdS Bubbles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Holographic Dual of de Sitter Universe with AdS Bubbles will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-417606