Rotation of Linear Polarization Plane and Circular Polarization from Cosmological Pseudoscalar Fields

Fabio Finelli; Matteo Galaverni

arxiv: 0802.4210 · v3 · submitted 2008-02-28 · 🌌 astro-ph

Rotation of Linear Polarization Plane and Circular Polarization from Cosmological Pseudoscalar Fields

Fabio Finelli , Matteo Galaverni This is my paper

classification 🌌 astro-ph

keywords polarizationpseudoscalarrotationcircularfieldlinearplaneacting

0 comments

read the original abstract

We discuss the rotation of the linear polarization plane and the production of circular polarization generated by a pseudoscalar field acting as dark matter. We compute analytically and numerically the propagation of the Stokes parameters from the last scattering surface for an oscillating and a monotonic decreasing pseudoscalar field. For the models studied in this paper, we show the comparison between the widely used approximation in which the rotation angle is constant in time and the exact result.

This paper has not been read by Pith yet.

discussion (0)

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

Probing Axion-Photon conversion via circular polarization imprints in the CMB $V$-mode observations
astro-ph.CO 2025-10 unverdicted novelty 6.0

Proposes that axion-photon conversion in pre-CMB helical magnetic fields imprints detectable V-mode polarization in the CMB, allowing CLASS 40 GHz observations to constrain ALP masses 10^{-10} to 10^{-8} eV and their ...