COSMOLOGICAL FLUIDS AS TIME VARIABLES IN GENERAL-RELATIVITY

被引：23
|
作者：
SALOPEK, DS
STEWART, JM
机构：
[1] University of Cambridge, Department of Applied Mathematics and Theoretical Physics, Cambridge CB3 9EW, Silver Street
来源：
PHYSICAL REVIEW D | 1993年 / 47卷 / 08期
关键词：
D O I：
10.1103/PhysRevD.47.3235
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The use of potentials describing perfect fluids illuminates the role of time in general relativity. Using Hamilton-Jacobi methods, one can find solutions for inhomogeneous situations of interest to cosmology without making an explicit time choice until the very end of the calculation. We compute exact general solutions of long-wavelength matter and radiation interacting with gravity. Hamilton-Jacobi methods can describe adiabatic and isothermal fluctuations as well as the scalar, vector, and tensor modes.
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页码：3235 / 3244
页数：10
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