Gravitational lensing effect on cosmic microwave background polarization

@article{Zaldarriaga1998GravitationalLE,
  title={Gravitational lensing effect on cosmic microwave background polarization},
  author={M. Zaldarriaga and U. Seljak},
  journal={Physical Review D},
  year={1998},
  volume={58},
  pages={023003}
}
We investigate the effect of gravitational lensing by matter distribution in the universe on the cosmic microwave background polarization power spectra and temperature-polarization cross-correlation spectrum. As in the case of the temperature spectrum, gravitational lensing leads to a smoothing of narrow features and the enhancement of power on the damping tail of the power spectrum. Because the acoustic peaks in polarization spectra are narrower than in the temperature spectrum the smoothing… Expand
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