摘要
本文在线性与严格平面引力波情况下,讨论了不同的引力场能量动量表达式所定义的能量密度的引力规范不变性问题,并指出这两种情况仅为协变无迹能量、动量、张量给出规范不变的能量密度.
This papar discusses the gravitational gauge invariance of the
energy densities difined by various expressions for the energy-momentum of
the gravitational field in the linear and exact gravitational waves.It points
out that in both cases only the covariant traceless energy-momentum tensor
gives the energy densities which are gravitational gauge invariant.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1991年第5期43-49,共7页
Journal of Shanghai Jiaotong University
关键词
引力场
规范不变性
能量密度
general relativity
gravitational energy
gauge invariance
