Generation of Circular Polarization of CMB via Polarized Compton Scattering

Abstract

The standard scenario of cosmology predicts a measurable amount for linear polarization of the Cosmic Microwave Background radiation (CMB) via Thomson scattering, while through this scenario, the generation of circular polarization is excluded. On the another hand, the circular polarization of CMB has not been excluded in observational evidence. The generation of CMB photons circular polarization via their Compton scattering with polarized cosmic electrons is considered in this paper. Our motivation for considering polarized Compton scattering comes from the effects of the external magnetic field in large scale, the chiral magnetic instability and new physics interactions of the cosmic electrons. It is shown that damping term of polarized Compton scattering in the presence of scalar perturbation can generate circular polarization in CMB radiation, so that the power spectrum of circular polarization of CMB $C_l^{V(S)}$ is proportional to the power spectrum of temperature anisotropy of CMB $C_l^{I(S)}$ and also ${\delta }^2$ which is a fraction of polarized electron number density to the total one with net Left- or Right-handed polarizations. We have discussed that at least we need $\delta <10^{-4}$ to find consistency with a reported upper limit of CMB circular polarization.

arXiv admin note: text overlap with arXiv:astro-ph/0002044 by other authors

References in corpus (36)

• Planck 2013 results. I. Overview of products and scientific results
• An All-Sky Analysis of Polarization in the Microwave Background
• Statistics of Cosmic Microwave Background Polarization
• New Developments in FeynCalc 9.0
• Physics of Strongly Magnetized Neutron Stars
• A CMB Polarization Primer
• Microwave Background Constraints on Cosmological Parameters
• A Measurement of the Cosmic Microwave Background Damping Tail from the 2500-square-degree SPT-SZ survey
• The Atacama Cosmology Telescope: Temperature and Gravitational Lensing Power Spectrum Measurements from Three Seasons of Data
• The Atacama Cosmology Telescope: The Receiver and Instrumentation
• Cosmic Microwave Background Polarization
• Reionization Revisited: Secondary CMB Anisotropies and Polarization
• CLASS: The Cosmology Large Angular Scale Surveyor
• The Cosmic Microwave Background and Particle Physics
• Fermion production during and after axion inflation
• Circular polarization from stochastic synchrotron sources
• The Role of the Electron Mass in Damping Chiral Magnetic Instability in Supernova and Neutron Stars
• Generation of circular polarization of the CMB
• Is the Cosmic Microwave Background Circularly Polarized?
• The Cosmic Microwave Background Radiation
• Faraday rotation, stochastic magnetic fields and CMB maps
• Gamma-ray polarization constraints on Planck scale violations of special relativity
• A New Limit on CMB Circular Polarization from SPIDER
• Generation of Circular Polarization of the Cosmic Microwave Background
• Photon-graviton scattering: A new way to detect anisotropic gravitational waves?
• Evidence for cosmic neutrino background form CMB circular polarization
• The Primordial Inflation Polarization Explorer (PIPER)
• An improved upper limit to the CMB circular polarization at large angular scales
• Circular polarization of the CMB: Foregrounds and detection prospects
• Exploring circular polarization in the CMB due to conventional sources of cosmic birefringence
• Generation of circular polarization in CMB radiation via nonlinear photon-photon interaction
• Magneto-optic effects of the Cosmic Microwave Background
• Circular polarization in a spherical basis
• The B-mode polarization of CMB and Cosmic Neutrino Background
• Circularly Polarized EM Radiation from GW Binary Sources
• Photon-photon interactions can be a source of CMB circular polarization

Cited by in corpus (10)

• CMB circular and B-mode polarization from new interactions
• CMB $V$ modes from photon-photon forward scattering revisited
• Impact of half-wave plate systematics on the measurement of cosmic birefringence from CMB polarization
• Physics Beyond The Standard Model with Circular Polarization in the CMB and CMB-21cm Cross-Correlation
• CMB polarization as a tool to constrain the optical properties of the Universe
• Circular polarization of cosmic photons due to their interactions with Sterile neutrino dark matter
• Impact of half-wave plate systematics on the measurement of CMB $B$-mode polarization
• B-mode Power Spectrum of CMB via Polarized Compton Scattering
• A comprehensive study of Modulation effects on CMB Polarization
• Spin Hall effect of light in inhomogeneous axion field