等效原理与引力场的能量-动量表示  

According as the Principle of Equivalence to Determine The Expression of Energy-Momentum Pseudotensor of the Gravitational Field

作　　者：邓昭镜[1] 

机构地区：[1]西南大学物理科学与技术学院,重庆400715

出　　处：《西南大学学报（自然科学版）》2008年第9期11-15,共5页Journal of Southwest University(Natural Science Edition)

摘　　要：等效原理是作为时-空背景的引力场的独特规律,又是引力场籍以区别于所有其它物质场(或非背景场)的最独特的性质.正因为如此,和所有其它物质场不同,引力场的能量-动量不可能有张量表示,或者说不可能定域化.对此学术界曾引发了一场争论,提出了引力场能量-动量的各种表述.纵观各种表述,只有Landau提出的能量-动量赝张量表示才是最能反映等效原理要求的表述.因此,就比较而言,Landau和Hans提出的关于引力场的能量-动量赝张量表述是更为合理的表述.重温Landau和Hans关于引力场能量-动量赝张量表述,以阐明如何依靠等效原理来探求纯引力场的能量-动量表述.in his book The Classical Theory of Field, Landau rigorously deduced the expression of energymomentum pseudotensor of the gravitational field as , but he failed to give the concrete deductive process of this expression. Following Landau＇s thinking, based on the principle of equivalence and starting from the gravitational field equation, the author of this paper has rigorously reconsidered the concrete deductive process of the expression of energy-momentum pseudotensor of the pure gravitational field, and the results are in good agreement with given by Landau.

关 键 词：等效原理 守恒律 能量-动量张量 能量-动量赝张量 

分 类 号：O412.2[理学—理论物理]