Unimodular cosmology and the weight of energy

被引：47
作者：
Alvarez, Enrique
Faedo, Anton F.
机构：
[1] Univ Autonoma Madrid, CSIC, Inst Fis Teor, E-28049 Madrid, Spain
[2] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain
来源：
PHYSICAL REVIEW D | 2007年 / 76卷 / 06期
关键词：
D O I：
10.1103/PhysRevD.76.064013
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Some models are presented in which the strength of the gravitational coupling of the potential energy relative to the same coupling for the kinetic energy is, in a precise sense, adjustable. The gauge symmetry of these models consists of those coordinate changes with unit Jacobian.
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页数：9
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