Extracting the bulk metric from boundary information in asymptotically AdS spacetimes
arXiv:hep-th/0609202 · doi:10.1088/1126-6708/2006/12/047
Abstract
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.
33 pages, 11 figures; v2 references added
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