Trapped surfaces, horizons and exact solutions in higher dimensions
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Publication:4549975
DOI10.1088/0264-9381/19/12/101zbMATH Open1002.83051arXivhep-th/0204005OpenAlexW1972632470MaRDI QIDQ4549975
Author name not available (Why is that?)
Publication date: 19 January 2003
Published in: (Search for Journal in Brave)
Abstract: A very simple criterion to ascertain if (D-2)-surfaces are trapped in arbitrary D-dimensional Lorentzian manifolds is given. The result is purely geometric, independent of the particular gravitational theory, of any field equations or of any other conditions. Many physical applications arise, a few shown here: a definition of general horizon, which reduces to the standard one in black holes/rings and other known cases; the classification of solutions with a (D-2)-dimensional abelian group of motions and the invariance of the trapping under simple dimensional reductions of the Kaluza-Klein/string/M-theory type. Finally, a stronger result involving closed trapped surfaces is presented. It provides in particular a simple sufficient condition for their absence.
Full work available at URL: https://arxiv.org/abs/hep-th/0204005
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