Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-07-28
Physics
High Energy Physics
High Energy Physics - Theory
7 pages, 4 figures
Scientific paper
We investigate the geometry of lightsheets comprised of null geodesics near a brane. Null geodesics which begin parallel to a brane a distance d away are typically gravitationally bound to the brane, so that the maximum distance from the geodesic to the brane never exceeds d. The geometry of resulting lightsheets is similar to that of the brane if one coarse grains over distances of order d. We discuss the implications for the covariant entropy bound applied to brane worlds.
Hong Deog Ki
Hsu Stephen D. H.
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