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Lensing reconstruction of primordial cosmic microwave background polarization

Cooray, Asantha (2002) Lensing reconstruction of primordial cosmic microwave background polarization. Physical Review D, 66 (10). Art. No. 103509. ISSN 0556-2821.

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We discuss the possibility to directly reconstruct the cosmic microwave background (CMB) polarization field at the last scattering surface by accounting for modifications imposed by the gravitational lensing effect. The suggested method requires a tracer field of the large scale structure lensing potentials that deflected propagating CMB photons from the last scattering surface. This required information can come from a variety of observations on the large scale structure matter distribution, including the convergence reconstructed from lensing shear studies involving galaxy shapes. In the case of so-called curl, or B modes of CMB polarization, the reconstruction allows one to identify the distinct signature of inflationary gravitational waves.

Item Type:Article
Additional Information:©2002 The American Physical Society. Received 15 May 2002; published 25 November 2002. This work was supported in part by DOE Grant No. DE-FG03-92-ER40701 and the Sherman Fairchild Foundation.
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10982
Deposited By: Archive Administrator
Deposited On:21 Jun 2008
Last Modified:26 Dec 2012 10:07

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