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Surface gravities for non-Killing horizons

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arxiv 1302.2383 v1 pith:Z3DWPPGB submitted 2013-02-11 gr-qc hep-th

Bethan Cropp (SISSA/INFN) , Stefano Liberati (SISSA/INFN) , Matt Visser (Victoria University of Wellington) This is my paper · ORCID
classification gr-qchep-th
keywords horizonsgravityanaloguecharacterizationsdistincthorizonlogicallymany
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There are many logically and computationally distinct characterizations of the surface gravity of a horizon, just as there are many logically rather distinct notions of horizon. Fortunately, in standard general relativity, for stationary horizons, most of these characterizations are degenerate. However, in modified gravity, or in analogue spacetimes, horizons may be non-Killing or even non-null, and hence these degeneracies can be lifted. We present a brief overview of the key issues, specifically focusing on horizons in analogue spacetimes and universal horizons in modified gravity.

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Cited by 4 Pith papers

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