Surface gravities for non-Killing horizons

被引：55

作者：

Cropp, Bethan ^{[1
,2
]}

Liberati, Stefano ^{[1
,2
]}

Visser, Matt ^{[3
]}

机构：

[1] SISSA, Int Sch Adv Studies, I-34136 Trieste, Italy

[2] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy

[3] Victoria Univ Wellington, Sch Math Stat & Operat Res, Wellington 6140, New Zealand

来源：

CLASSICAL AND QUANTUM GRAVITY | 2013年 / 30卷 / 12期

关键词：

BLACK-HOLES; SPACETIMES;

D O I：

10.1088/0264-9381/30/12/125001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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, 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.

引用

页数：22

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