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arXiv 0907.0412gr-qc
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引力自作用力简介

Introduction to Gravitational Self-Force

Robert M. Wald

摘要:

在广义相对论中,充分小物体的运动应该用测地线精确描述。然而,应该有“重力自作用力”对测地线运动的修正,类似于电动力学中出现的"辐射反作用力“。为了能够确定极端质量比极限下的螺旋运动等效应,能够计算这些自作用力修正是相当重要的。然而,如果试图在广义相对论的背景下考虑点粒子,就会出现严重的困难。这篇文章描述了这些困难以及如何处理它们。

英文摘要:

The motion of sufficiently small body in general relativity should be accurately described by a geodesic. However, there should be ``gravitational self-force'' corrections to geodesic motion, analogous to the ``radiation reaction forces'' that occur in electrodynamics. It is of considerable importance to be able to calculate these self-force corrections in order to be able to determine such effects as inspiral motion in the extreme mass ratio limit. However, severe difficulties arise if one attempts to consider point particles in the context of general relativity. This article describes these difficulties and how they have been dealt with.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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