Extracting the bulk metric from boundary information in asymptotically AdS spacetimes

Details Extracting the bulk metric from boundary information in asymptotically AdS spacetimes Extracting the bulk metric from boundary information in asymptotically AdS spacetimes

2006-09-28

arxiv.org/abs/hep-th/0609202v2

JHEP0612:047,2006

Physics

High Energy Physics

High Energy Physics - Theory

33 pages, 11 figures; v2 references added

Scientific paper

10.1088/1126-6708/2006/12/047

We use geodesic probes to recover the entire bulk metric in certain asymptotically AdS spacetimes. Given a spectrum of null geodesic endpoints on the boundary, we describe two remarkably simple methods for recovering the bulk information. After examining the issues which affect their application in practice, we highlight a significant advantage one has over the other from a computational point of view, and give some illustrative examples. We go on to consider spacetimes where the methods cannot be used to recover the complete bulk metric, and demonstrate how much information can be recovered in these cases.

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