arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0907.3461gr-qc
收藏

无穷远附近能量动量和Angular Momentum的估计

Estimating Energy-Momentum and Angular Momentum Near Null Infinity

Adam D. Helfer

摘要:

通过近似无入射辐射条件将球面拓扑的类空双曲面连接到零无穷远,估计了类空双曲面中包含的能量动量和角动量。其结果是一组规范不变的能量动量和角动量的公式,这应该适用于许多数值工作,它也给出了有限尺寸效应的估计。

英文摘要:

The energy-momentum and angular momentum contained in a spacelike two-surface of spherical topology are estimated by joining the two-surface to null infinity via an approximate no-incoming-radiation condition. The result is a set of gauge-invariant formulas for energy-momentum and angular momentum which should be applicable to much numerical work; it also gives estimates of the finite-size effects.

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。

↑