Jul 5 – 10, 2021
Europe/Rome timezone

The impact of the Lorentz symmetry violation on the CMB polarization

Jul 5, 2021, 6:19 PM
14m
Talk in the parallel session Cosmic Backgrounds from radio to far-IR Cosmic Backgrounds from Radio to Far-IR

Speaker

seddigheh tizchang (School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM)

Description

In the standard cosmological scenario, no circular polarization is predicted for Cosmic Microwave Background (CMB) radiation. However, in the frame of moving particle, Lorentz symmetry can violate and lead to circular polarization for CMB radiation. We estimate the circular polarization power spectrum $C_l^{V(S)}$ in CMB radiation due to Compton scattering in presence of the Lorentz symmetry violation. We show that the V-mode power spectrum can be obtained in terms of linear polarization power spectrum at the last scattering surface.

Primary authors

seddigheh tizchang (School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM) Dr Rohoollah Mohammadi (Iranian National Science and Technology Museum (INMOST),School of Astronomy, Institute for Research in FundamentalSciences (IPM) ) Dr She-Sheng Xue (ICRANet and Department of Physics, University of Rome“Sapienza” P.le A. Moro 5, 00185 Rome, Italy)

Presentation materials

There are no materials yet.

Proceedings

Paper