XXVI DAE-BRNS High Energy Physics Symposium 2024

Scalar modes of polarization in gravitational waves

Not scheduled

20m

Swatantrata Bhavan, Banaras Hindu University, Varanasi

Oral Astroparticle physics and cosmology

Speaker

Sakshi Srivastava

Description

We study Gravitational Waves (GWs) in modified gravity theory. We choose metric $f(R)$ gravity to explore the characteristics of GWs in the presence of an additional scalar field. We examine additional polarization modes (longitudinal and breathing modes) beyond standard ''plus" and ''cross" modes of polarization, predicted by general theory of relativity. The study also focuses on the nature of scalar field using chameleon mechanism in different density regions.