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Stability of marginally outer trapped surfaces and existence of marginally outer trapped tubes

MPS-Authors

Andersson,  Lars
Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Fulltext (public)

AdvTMP08-12-853.pdf
(Publisher version), 503KB

0704.2889v2.pdf
(Preprint), 303KB

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Citation

Andersson, L., Mars, M., & Simon, W. (2008). Stability of marginally outer trapped surfaces and existence of marginally outer trapped tubes. Advances in Theoretical and Mathematical Physics, 12(4), 853-888.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-1429-1
Abstract
The present work extends our short communication L. Andersson, M. Mars and W. Simon, Local existence of dynamical and trapping hoTizons, Phys. Rev. Lett. 95 (2005), 111102. For smooth marginally outer trapped surfaces (MOTS) in a smooth spacetime, we define stability with respect to variations along arbitrary vectors v normal to the MOTS. After giving some introductory material about linear nonself-adjoint elliptic operators, we introduce the stability operator L, and we characterize stable MOTS in terms of sign conditions on the principal eigenvalue of L,. The main result shows that given a strictly stable MOTS So C Eo in a spacetime with a reference foliation Et, there is an open marginally outer trapped tube (MOTT), adapted to the reference foliation, which contains So. We give conditions under which the MOTT can be completed. Finally, we show that under standard energy conditions on the spacetime, the MOTT must be either locally achronal, spacelike or null.