Weyl gravity as general relativity

被引：32
|
作者：
Wheeler, James T. [1 ]
机构：
[1] Utah State Univ, Dept Phys, Logan, UT 84322 USA
来源：
PHYSICAL REVIEW D | 2014年 / 90卷 / 02期
关键词：
GAUGE FORMULATION; EXPANSION; SPACES;
D O I：
10.1103/PhysRevD.90.025027
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
When the full connection of Weyl conformal gravity is varied instead of just the metric, the resulting vacuum field equations reduce to the vacuum Einstein equation, up to the choice of local units, if and only if the torsion vanishes. This result differs strongly from the usual fourth-order formulation of Weyl gravity.
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页数：7
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