THE COSMOLOGICAL CONSTANTS

被引:44
作者
BENGTSSON, I
机构
[1] Institute of Theoretical Physics
关键词
D O I
10.1016/0370-2693(91)90395-7
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We point out that the lagrangian due to Capovilla, Jacobson and Dell, as well as the hamiltonian due to Ashtekar, both of which describe complex four dimensional general relativity, permit the introduction of an infinite set of parameters, one of which is the usual cosmological constant. For arbitrary choices of the parameters, the model has two degrees of freedom, and we show how to identify the space-time metric in terms of them. The connection between the lagrangian and the hamiltonian is partially worked out.
引用
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页码:55 / 60
页数:6
相关论文
共 7 条
[1]   NEW HAMILTONIAN-FORMULATION OF GENERAL-RELATIVITY [J].
ASHTEKAR, A .
PHYSICAL REVIEW D, 1987, 36 (06) :1587-1602
[2]  
Ashtekar A., 1988, NEW PERSPECTIVES CAN
[3]   ASHTEKAR VARIABLES, THE THETA-TERM, AND THE COSMOLOGICAL CONSTANT [J].
BENGTSSON, I ;
PELDAN, P .
PHYSICS LETTERS B, 1990, 244 (02) :261-264
[4]  
BENGTSSON I, 1990, 9038 GOT PREPR
[5]   GENERAL-RELATIVITY WITHOUT THE METRIC [J].
CAPOVILLA, R ;
JACOBSON, T ;
DELL, J .
PHYSICAL REVIEW LETTERS, 1989, 63 (21) :2325-2328
[6]  
CAPOVILLA R, 1990, UMDGR90252 MAR PREPR
[7]  
CAPOVILLA R, 1990, UMDGR90253 MAR PREPR