Cosmic string lens effects on CMB polarization patterns

Abstract

Extending the Kaiser-Stebbins mechanism we propose here a method for detecting relics of topological defects such as cosmic strings based on lens-induced small-scale B-type polarization in the CMB. Models of inflation, in which large scale structures of the Universe emerge from the inflaton fluctuations,do not exclude the formation of topological defects at the end of the inflationary phase. In such case, we show that the lens effect of a string on the small scale E-type polarization of the CMB induces a significant amount of B-type polarization along the line-of-sight. The amplitude of the effect is estimated for different resolutions of CMB experiments.

Latex2e with REVTEX ; 5 pages, 5 figures accepted for publication in PRD Title and abstract changed, a few lines and references added, following referee suggestions. Composition changed to follow PRD style convention

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Cited by in corpus (22)

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• How to measure CMB polarization power spectra without losing information
• Cosmic String constraints from WMAP and the South Pole Telescope
• B-modes from Cosmic Strings
• B polarization of cosmic microwave background as a tracer of strings
• Forecast constraints on cosmic string parameters from gravitational wave direct detection experiments
• Full-sky lensing reconstruction of gradient and curl modes from CMB maps
• Full-sky CMB lensing reconstruction in presence of sky-cuts
• Forecast constraints on cosmic strings from future CMB, pulsar timing and gravitational wave direct detection experiments
• A Signature of Cosmic Strings Wakes in the CMB Polarization
• Vacuum Polarization of a Charged Massless Scalar Field on Cosmic String Spacetime in the Presence of a Magnetic Field
• CMB Bispectrum from Active Models of Structure Formation
• CMB B-polarization to map the Large-scale Structures of the Universe
• Weak lensing generated by vector perturbations and detectability of cosmic strings
• Multi-Scale Pipeline for the Search of String-Induced CMB Anisotropies
• Cosmic String Detection with Tree-Based Machine Learning
• Nonrelativistic Quantum Analysis of the Charged Particle-Dyon System on a Conical Spacetime
• Cosmic Microwave Background Signatures from Current-carrying Cosmic Strings
• Evolution of FLRW spacetime after the birth of a cosmic string
• B-mode polarization induced by gravitational waves from kinks on infinite cosmic strings
• Angular Power Spectrum of B-mode Polarization from Cosmic String Wakes
• Improved Method for Detecting Local Discontinuities in CMB data by Finite Differencing