Weak Gravitational Lensing of CMB - Revisit

Abstract

In this paper, we revisit the weak gravitational lensing of CMB. The key point is that the deflection angle of CMB photon varies with the redshift. From this we obtain a set of modified power spectra. Compared with the ones calculated before, the temperature, the polarization E mode and the cross power spectra correction are of the order $0.01$, while the polarization B mode correction is about $0.4$ (to $l=2000$).

Accepted for publication in the Astrophysical Journal. 18 pages, 6 figures

References in corpus (6)

• Weak Gravitational Lensing of the CMB
• Lensed CMB power spectra from all-sky correlation functions
• The influence of non-uniform reionization on the CMB
• The cosmic microwave background bispectrum from the non-linear evolution of the cosmological perturbations
• Constraints on standard and non-standard early Universe models from CMB B-mode polarization
• A Beginner's Guide to the Theory of CMB Temperature and Polarization Power Spectra in the Line-of-Sight Formalism

Cited by in corpus (2)

• Formulating Weak Lensing from the Boltzmann Equation and Application to Lens-lens Couplings
• Weak Lensing Effect on CMB in the Presence of a Dipole Anisotropy