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Book Chapter

Spin geometry and conservation laws in the Kerr spacetime

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

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1504.02069.pdf
(Preprint), 462KB

Spin_geometry.pdf
(Any fulltext), 358KB

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Citation

Andersson, L., Bäckdahl, T., & Blue, P. (2015). Spin geometry and conservation laws in the Kerr spacetime. In L. Bieri (Ed.), One hundred years of general relativity (Surveys in Differential Geometry, 20) (pp. 183-226). Boston: International Press.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-0001-8
Abstract
In this paper we will review some facts, both classical and recent, concerning the geometry and analysis of the Kerr and related black hole spacetimes. This includes the analysis of test fields on these spacetimes. Central to our analysis is the existence of a valence $(2,0)$ Killing spinor, which we use to construct symmetry operators and conserved currents as well as a new energy momentum tensor for the Maxwell test fields on a class of spacetimes containing the Kerr spacetime. We then outline how this new energy momentum tensor can be used to obtain decay estimated for Maxwell test fields. An important motivation for this work is the black hole stability problem, where fields with non-zero spin present interesting new challenges. The main tool in the analysis is the 2-spinor calculus, and for completeness we introduce its main features.