Gravitational wave memory in conformally flat spacetimes

被引：0
|
作者：
Jokela, Niko [1 ,2 ]
Kajantie, K. [2 ]
Sarkkinen, Miika [1 ]
机构：
[1] Univ Helsinki, Dept Phys, POB 64, FIN-00014 Helsinki, Finland
[2] Univ Helsinki, Helsinki Inst Phys, POB 64, FIN-00014 Helsinki, Finland
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2023年 / 2023卷 / 05期
基金：
芬兰科学院;
关键词：
Classical Theories of Gravity; Cosmological models;
D O I：
10.1007/JHEP05(2023)055
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We study the gravitational wave memory effect in spacetimes related to flat space by a conformal transformation. The discussion is general but the gravitational wave length scale is assumed to be small compared with the background curvature radius. The general formulas are applied to Friedmann-Robertson-Walker metrics of all spatial curvatures. The effect of new terms stemming from spatial curvature is potentially detectable in future gravitational wave measurements.
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页数：29
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