Mathematics – Logic
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...198.0604k&link_type=abstract
American Astronomical Society, 198th AAS Meeting, #06.04; Bulletin of the American Astronomical Society, Vol. 33, p.794
Mathematics
Logic
Scientific paper
Inflation generically predicts a primordial background of gravitational waves which induce a curl component in the polarization of the CMB. The power spectrum of this polarization signal can in principle be used to determine the height of the inflaton potential when cosmological scales exited the horizon during inflation. However, large-scale structure between the observer and the surface of last-scattering can also induce a curl component in the CMB polarization through weak gravitational lensing and the Ostriker-Vishniac effect. We examine the extent to which a gravitational wave signal can be distinguished from these other effects, and consider the prospects for experimental observation of these phenomena in the near future.
Kamionkowski Marc
Kesden Michael H.
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