Energy-Momentum Pseudo-Tensor of Relic Gravitational Wave of Both the Polarized States  

作　　者：张显洪 李芳昱 

机构地区：[1]Department of Physics, Chongqing University, Chongqing 400044

出　　处：《Chinese Physics Letters》2006年第6期1395-1397,共3页中国物理快报（英文版）

基　　金：Supported by the National Basic Research Programme of China under Grant No 2003 CB 716300,the National Natural Science Foundation of China under Grant No 10575140, and the Natural Science Foundation Chongqing under Grant No 8562.

摘　　要：Unlike usual celestial gravitational waves, the relic gravitational waves （RGWs） form random signals in curved spacetime background. We calculate the energy-momentum pseudo-tensor of a certain component of the RGWs propagating along arbitrary directions in Cartesian coordinates. It is found that the energy density of RGWs is positive definitely, and the momentum density components have reasonable behaviour. Such results may provide a theoretical basis for the detection of RGWs.Unlike usual celestial gravitational waves, the relic gravitational waves （RGWs） form random signals in curved spacetime background. We calculate the energy-momentum pseudo-tensor of a certain component of the RGWs propagating along arbitrary directions in Cartesian coordinates. It is found that the energy density of RGWs is positive definitely, and the momentum density components have reasonable behaviour. Such results may provide a theoretical basis for the detection of RGWs.

关 键 词：ROBERTSON-WALKER UNIVERSES 

分 类 号：O41[理学—理论物理]