Time and observables in unimodular gravity

被引：3
|
作者：
Farajollahi, H [1 ]
机构：
[1] Univ Sydney, Sch Math & Stat, Sydney, NSW 2006, Australia
来源：
GENERAL RELATIVITY AND GRAVITATION | 2005年 / 37卷 / 02期
关键词：
relativity; unimodular gravity; time; observable;
D O I：
10.1007/s10714-005-0025-z
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A cosmological time variable is emerged from the hamiltonian formulation of unimodular theory of gravity to measure the evolution of dynamical observables in the theory. A set of 'constants of motion' has been identified for the theory on the null hypersurfaces that its evolution is with respect to the volume clock introduced by the cosmological time variable.
引用
收藏
页码：383 / 390
页数：8
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