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          Institute: MPI für Gravitationsphysik     Collection: Quantum Gravity and Unified Theories     Display Documents



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ID: 3501.0, MPI für Gravitationsphysik / Quantum Gravity and Unified Theories
On Uniqueness of static Einstein-Maxwell-Dilation black holes
Authors:Mars, Marc; Simon, Walter
Language:English
Date of Publication (YYYY-MM-DD):2002
Title of Journal:Advances in Theoretical and Mathematical Physics
Volume:6
Issue / Number:2
Start Page:279
End Page:305
Review Status:not specified
Audience:Not Specified
Abstract / Description:We prove uniqueness of static, asymptotically flat spacetimes with non-degenerate black holes for three special cases of Einstein-Maxwell-dilaton theory: For the coupling ''''$alpha = 1$'' (which is the low energy limit of string theory) on the one hand, and for vanishing magnetic or vanishing electric field (but arbitrary coupling) on the other hand. Our work generalizes in a natural, but non-trivial way the uniqueness result obtained by Masood-ul-Alam who requires both $alpha = 1$ and absence of magnetic fields, as well as relations between the mass and the charges. Moreover, we simplify Masood-ul-Alam's proof as we do not require any non-trivial extensions of Witten's positive mass theorem. We also obtain partial results on the uniqueness problem for general harmonic ma
External Publication Status:published
Document Type:Article
Communicated by:Hermann Nicolai
Affiliations:MPI für Gravitationsphysik/Quantum Gravity and Unified Theories
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