Author(s):
1. Aisha Siddiqa:
Virtual University of Pakistan,Islamabad, Pakistan
Abstract:
This presentation focuses on the propagation of even modes of primordial gravitational waves (GWs) in an extended Bianchi type- I cosmological model within the framework of $f(R,T^{\psi})$ gravity. Beginning with the derivation of field equations for a locally rotationally symmetric Bianchi type-I universe, the study employs the Regge-Wheeler perturbation scheme to analyze polar wave dynamics. Perturbed field equations are formulated, and analytical solutions for the metric potentials are derived under specific assumptions. The temporal and spatial characteristics of wave propagation are explored, with graphical analyses highlighting the unique features of even wave modes in this cosmological framework. This work provides insights into the behavior of gravitational wave perturbations in anisotropic early universe models.
Page(s):
144-144
DOI:
DOI not available
Published:
Journal: 4th International Conference of Sciences “Revamped Scientific Outlook of 21st Century, 2025” , November 12,2025, Volume: 1, Issue: 1, Year: 2025
Keywords:
Primordial gravity waves
,
Bianchi universes
,
Modified gravity
References:
References are not available for this document.
Citations
Citations are not available for this document.