A PHYSICAL INTERPRETATION OF GRAVITATIONAL FIELD EQUATIONS

被引:28
作者
Padmanabhan, T. [1 ]
机构
[1] IUCAA, Pune 411007, Maharashtra, India
来源
INVISIBLE UNIVERSE INTERNATIONAL CONFERENCE | 2010年 / 1241卷
关键词
gravity; field equations; black hole entropy; horizon; Lanczos-Lovelock models; Kindler frame; ZERO-POINT LENGTH; DARK ENERGY; GRAVITY; THERMODYNAMICS; SPACETIME; HORIZONS; ENTROPY; VACUUM; TENSOR; SCHWARZSCHILD;
D O I
10.1063/1.3462738
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
It is possible to provide a thermodynamic interpretation for the field equations in any diffeomorphism invariant theory of gravity. This insight, in turn, leads us to the possibility of deriving the gravitational field equations from another variational principle without using the metric as a dynamical variable. I review this approach and discuss its implications.
引用
收藏
页码:93 / 108
页数:16
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