Curvature-matter coupling effects on axial gravitational waves
Abstract In this paper, we investigate propagation of axial gravitational waves in the background of flat FRW universe in f(R, T) theory. The field equations are obtained for unperturbed as well as axially perturbed FRW metric. These field equations are solved simultaneously to obtain the unknown pe...
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SpringerOpen
2018-09-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-018-6201-6 |
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doaj-afd9853b84c44dc0817368d79dd5c60d2020-11-24T21:27:47ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522018-09-017891710.1140/epjc/s10052-018-6201-6Curvature-matter coupling effects on axial gravitational wavesM. Sharif0Aisha Siddiqa1Department of Mathematics, University of the PunjabDepartment of Mathematics, University of the PunjabAbstract In this paper, we investigate propagation of axial gravitational waves in the background of flat FRW universe in f(R, T) theory. The field equations are obtained for unperturbed as well as axially perturbed FRW metric. These field equations are solved simultaneously to obtain the unknown perturbation parameters. We find that the assumed perturbations can affect matter as well as four velocity. Moreover, ignoring the material perturbations we explicitly obtain an expression for four velocity. It is concluded that axial gravitational waves in the curvature-matter coupling background can produce cosmological rotation or have memory effect if the wave profile has discontinuity at the wave front.http://link.springer.com/article/10.1140/epjc/s10052-018-6201-6 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
M. Sharif Aisha Siddiqa |
| spellingShingle |
M. Sharif Aisha Siddiqa Curvature-matter coupling effects on axial gravitational waves European Physical Journal C: Particles and Fields |
| author_facet |
M. Sharif Aisha Siddiqa |
| author_sort |
M. Sharif |
| title |
Curvature-matter coupling effects on axial gravitational waves |
| title_short |
Curvature-matter coupling effects on axial gravitational waves |
| title_full |
Curvature-matter coupling effects on axial gravitational waves |
| title_fullStr |
Curvature-matter coupling effects on axial gravitational waves |
| title_full_unstemmed |
Curvature-matter coupling effects on axial gravitational waves |
| title_sort |
curvature-matter coupling effects on axial gravitational waves |
| publisher |
SpringerOpen |
| series |
European Physical Journal C: Particles and Fields |
| issn |
1434-6044 1434-6052 |
| publishDate |
2018-09-01 |
| description |
Abstract In this paper, we investigate propagation of axial gravitational waves in the background of flat FRW universe in f(R, T) theory. The field equations are obtained for unperturbed as well as axially perturbed FRW metric. These field equations are solved simultaneously to obtain the unknown perturbation parameters. We find that the assumed perturbations can affect matter as well as four velocity. Moreover, ignoring the material perturbations we explicitly obtain an expression for four velocity. It is concluded that axial gravitational waves in the curvature-matter coupling background can produce cosmological rotation or have memory effect if the wave profile has discontinuity at the wave front. |
| url |
http://link.springer.com/article/10.1140/epjc/s10052-018-6201-6 |
| work_keys_str_mv |
AT msharif curvaturemattercouplingeffectsonaxialgravitationalwaves AT aishasiddiqa curvaturemattercouplingeffectsonaxialgravitationalwaves |
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1725973443562700800 |