On the gauge invariance of cosmological gravitational waves

被引：86

作者：

De Luca, V ^{[1
,2
]}

Franciolini, G. ^{[1
,2
]}

Kehagias, A. ^{[3
]}

Riotto, A. ^{[1
,2
]}

机构：

[1] Univ Geneva, Dept Phys Theor, 24 Quai E Ansermet, CH-1211 Geneva, Switzerland

[2] Univ Geneva, CAP, 24 Quai E Ansermet, CH-1211 Geneva, Switzerland

[3] Natl Tech Univ Athens, Phys Div, Zografou Campus, Athens 15780, Greece

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2020年 / 03期

基金：

瑞士国家科学基金会;

关键词：

gravitational waves / theory; primordial gravitational waves (theory); primordial black holes; NON-GAUSSIANITY; INFLATION; EVOLUTION;

D O I：

10.1088/1475-7516/2020/03/014

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The issue of the gauge invariance of gravitational waves arises if they are produced in the early universe at second-order in perturbation theory. We address it by dividing the discussion in three parts: the production of gravitational waves, their propagation in the real universe, and their measurement.

引用

页数：27

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