Multipole particle in relativity

被引：26

作者：

Ohashi, A ^{[1
]}

机构：

[1] Ochanomizu Univ, Dept Phys, Bunkyo Ku, Tokyo 1128610, Japan

来源：

PHYSICAL REVIEW D | 2003年 / 68卷 / 04期

关键词：

D O I：

10.1103/PhysRevD.68.044009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss the motion of extended objects in a spacetime by considering a gravitational field created by these objects. We define multipole moments of the objects as a classification by the Lie group SO(3). Then, we construct an energy-momentum tensor for the objects and derive equations of motion from it. As a result, we reproduce the Papapetrou equations for a spinning particle. Furthermore, we will show that we can obtain more simple equations than the Papapetrou equations by changing the center-of-mass.

引用

页数：10

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