Holographic inflation is argued to imprint exact large-angle symmetries on the cosmic microwave background, most notably a vanishing temperature correlation at 90 degrees of angular separation.
CMB Tomography: Reconstruction of Adiabatic Primordial Scalar Potential Using Temperature and Polarization Maps
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abstract
Assuming linearity of the perturbations at the time of decoupling, we reconstruct the primordial scalar potential from the temperature and polarization anisotropies in the cosmic microwave background radiation. In doing so we derive an optimal linear filter which, when operated on the spherical harmonic coefficients of the anisotropy maps, returns an estimate of the primordial scalar potential fluctuations in a spherical slice. The reconstruction is best in a thick shell around the decoupling epoch; the quality of the reconstruction depends on the redshift of the slice within this shell. With high quality maps of the temperature and polarization anisotropies it will be possible to obtain a reconstruction of potential fluctuation on scales between l=2 and l ~ 300 at the redshift of decoupling, with some information about the three-dimensional shapes of the perturbations in a shell of width 250Mpc.
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Pattern of perturbations from a coherent quantum inflationary horizon
Holographic inflation is argued to imprint exact large-angle symmetries on the cosmic microwave background, most notably a vanishing temperature correlation at 90 degrees of angular separation.