Gravitational wave in symmetric teleparallel gravity with different connections

We investigate the cosmological perturbations around all three branches of spatially flat universe with different connections in symmetric teleparallel gravity. The model we consider can cover both the case of f(Q) model and that of the non-minimal coupling between a scalar field and the non-metrici...

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Main Authors: Haomin Rao, Chunhui Liu, Chao-Qiang Geng
Format: Article
Language:English
Published: Elsevier 2024-03-01
Series:Physics Letters B
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269324000558
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author Haomin Rao
Chunhui Liu
Chao-Qiang Geng
author_facet Haomin Rao
Chunhui Liu
Chao-Qiang Geng
author_sort Haomin Rao
collection DOAJ
description We investigate the cosmological perturbations around all three branches of spatially flat universe with different connections in symmetric teleparallel gravity. The model we consider can cover both the case of f(Q) model and that of the non-minimal coupling between a scalar field and the non-metricity scalar. We focus on analyzing and comparing the propagation behavior and stability of the tensorial and non-tensorial gravitational waves on spatially flat universe with different connections.
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spelling doaj.art-39a50bb608784850a2fe6ff5fb4ac1fb2024-03-14T06:13:13ZengElsevierPhysics Letters B0370-26932024-03-01850138497Gravitational wave in symmetric teleparallel gravity with different connectionsHaomin Rao0Chunhui Liu1Chao-Qiang Geng2School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China; University of Chinese Academy of Sciences, 100190 Beijing, China; Corresponding author.School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China; University of Chinese Academy of Sciences, 100190 Beijing, China; Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, ChinaSchool of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, ChinaWe investigate the cosmological perturbations around all three branches of spatially flat universe with different connections in symmetric teleparallel gravity. The model we consider can cover both the case of f(Q) model and that of the non-minimal coupling between a scalar field and the non-metricity scalar. We focus on analyzing and comparing the propagation behavior and stability of the tensorial and non-tensorial gravitational waves on spatially flat universe with different connections.http://www.sciencedirect.com/science/article/pii/S0370269324000558Symmetric teleparallel gravityCosmological perturbationsGravitational waveInstability
spellingShingle Haomin Rao
Chunhui Liu
Chao-Qiang Geng
Gravitational wave in symmetric teleparallel gravity with different connections
Physics Letters B
Symmetric teleparallel gravity
Cosmological perturbations
Gravitational wave
Instability
title Gravitational wave in symmetric teleparallel gravity with different connections
title_full Gravitational wave in symmetric teleparallel gravity with different connections
title_fullStr Gravitational wave in symmetric teleparallel gravity with different connections
title_full_unstemmed Gravitational wave in symmetric teleparallel gravity with different connections
title_short Gravitational wave in symmetric teleparallel gravity with different connections
title_sort gravitational wave in symmetric teleparallel gravity with different connections
topic Symmetric teleparallel gravity
Cosmological perturbations
Gravitational wave
Instability
url http://www.sciencedirect.com/science/article/pii/S0370269324000558
work_keys_str_mv AT haominrao gravitationalwaveinsymmetricteleparallelgravitywithdifferentconnections
AT chunhuiliu gravitationalwaveinsymmetricteleparallelgravitywithdifferentconnections
AT chaoqianggeng gravitationalwaveinsymmetricteleparallelgravitywithdifferentconnections