Gravitational Waves from Isolated Systems: Surprising Consequences of a Positive Cosmological Constant

被引：54

作者：

Ashtekar, Abhay ^{[1
]}

Bonga, Beatrice ^{[1
]}

Kesavan, Aruna ^{[1
]}

机构：

[1] Penn State Univ, Inst Gravitat, University Pk, PA 16802 USA

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 116卷 / 05期

基金：

美国国家科学基金会;

关键词：

GENERAL-RELATIVITY; GEOMETRY; FIELDS; MASS;

D O I：

10.1103/PhysRevLett.116.051101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

There is a deep tension between the well-developed theory of gravitational waves from isolated systems and the presence of a positive cosmological constant., however tiny. In particular a generalization of Einstein's 1918 quadrupole formula that would allow a positive. is not yet available. We first explain the principal difficulties and then show that it is possible to overcome them in the weak field limit. These results also provide concrete hints for constructing the A > 0 generalization of the Bondi-Sachs framework for full, nonlinear general relativity.

引用

页数：5

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