Horizon surface gravity as 2D geodesic expansion

被引:9
|
作者
Jacobson, Ted [1 ]
Parentani, Renaud [2 ]
机构
[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
[2] Univ Paris 11, CNRS, Phys Theor Lab, UMR 8627, F-91405 Orsay, France
基金
美国国家科学基金会;
关键词
D O I
10.1088/0264-9381/25/19/195009
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The surface gravity of any Killing horizon, in any spacetime dimension, can be interpreted as a local, two-dimensional expansion rate seen by freely falling observers when they cross the horizon. Any two-dimensional congruence of geodesics invariant under the Killing flow can be used to define this expansion, provided that the observers have unit Killing energy.
引用
收藏
页数:5
相关论文
共 50 条
  • [31] 2D DILATION GRAVITY IN A UNITARY GAUGE
    MIKOVIC, A
    [J]. PHYSICS LETTERS B, 1993, 304 (1-2) : 70 - 76
  • [32] BRS ANALYSIS OF 2D GRAVITY MODELS
    YANG, Z
    [J]. PHYSICS LETTERS B, 1990, 243 (1-2) : 52 - 56
  • [33] The concept of time in 2D quantum gravity
    Ambjorn, J
    Anagnostopoulos, KN
    Jurkiewicz, J
    Kristjansen, CF
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 1998, (04):
  • [34] Measure in the 2D Regge quantum gravity
    Zubkov, MA
    [J]. PHYSICS LETTERS B, 2005, 616 (3-4) : 221 - 227
  • [35] Scaling and quantum geometry in 2d gravity
    Anagnostopoulos, KN
    [J]. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 1999, 73 : 786 - 788
  • [36] Canonical approach to 2D induced gravity
    Popovic, DS
    Sazdovic, B
    [J]. MODERN PHYSICS LETTERS A, 2001, 16 (09) : 589 - 602
  • [37] LESSONS OF QUANTUM 2D DILATON GRAVITY
    DEALWIS, SP
    MACINTIRE, DA
    [J]. PHYSICS LETTERS B, 1995, 344 (1-4) : 110 - 116
  • [38] CANONICAL FORMULATION OF 2D INDUCED GRAVITY
    EGORIAN, ES
    MANVELIAN, RP
    [J]. MODERN PHYSICS LETTERS A, 1990, 5 (28) : 2371 - 2375
  • [39] TOWARDS UNIFIED THEORY OF 2D GRAVITY
    KHARCHEV, S
    MARSHAKOV, A
    MIRONOV, A
    MOROZOV, A
    ZABRODIN, A
    [J]. NUCLEAR PHYSICS B, 1992, 380 (1-2) : 181 - 240
  • [40] QUENCHING 2D QUANTUM-GRAVITY
    BAILLIE, CF
    HAWICK, KA
    JOHNSTON, DA
    [J]. PHYSICS LETTERS B, 1994, 328 (3-4) : 284 - 290