Gravitational Waves in f(R) Gravity Power Law Model

2019/01/31 by Dhruba Jyoti Gogoi, Umananda Dev Goswami · 33 citations
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Classical mechanics #Cosmology and Gravitation Theories #Curvature #Geometry #Gravitation #Gravitational field #Gravitational wave #Mathematical physics #Mathematics #Physics #Polarization (electrochemistry) #Pulsars and Gravitational Waves Research #Quantum electrodynamics #Quantum gravity #Quantum mechanics #Scalar (mathematics) #Scalar field #f(R) gravity #gr-qc

paper · pdf · doi:10.1007/s12648-020-01998-8

published in Indian Journal of Physics 96(2), 637-646 (Springer Science+Business Media) · 12 pages, 3 figures

openalex created_date 2019/02/21 · openalex publication_date 2021/01/18 · arxiv created 2021/01/20 · arxiv updated 2022/03/17 · openalex updated_date 2026/08/05

Abstract

We investigate the different polarization modes of Gravitational Waves (GWs) in f(R) gravity power law model in de Sitter space. It is seen that the massive scalar field polarization mode exists in this model. The mass of the scalar field depends highly on the background curvature and the power term n. However, we found that the model doesnot exhibit a massive scalar mode for n=2 and instead it shows a breathing mode in addition to the tensor plus and cross modes. Thus mass of the scalar field is found to vary with n within the range 1 ≤ n ≤ 2.

Citations

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Cited by

• Cosmology with a new f(R) gravity model in Palatini formalism