摘要
利用Einstein引力-物质系统的局域Lorentz不变性获得了相应于角动量的守恒定律.由于存在超势,总的流是自然守恒的且只依赖于标架(vierbein)最后给出两个具体而典型的实例,以说明此守恒定律的合理性.
The Noether current corresponding to the invariance of the action of a gravity-matter system under the local Lorentz transformation can be interpreted as the angular momentum tensor of the system. The total current is identically conserved due to the existence of superpotentials which are expressed in terms of the vierbein only and the total angular momentum is gauge-covariant. Two examples are given to show this conservation law of angular momentum in general relativity is reasonable.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1995年第9期1373-1381,共9页
Acta Physica Sinica
