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arXiv · 0904.1887

Erratum: Statistical anisotropy in the inflationary universe

Yuri Shtanov·Hanna Pyatkovska
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Abstract

An error was made when calculating the amplitude of the perturbed scalar mode after Hubble-radius crossing. When corrected, it eliminates the leading term in the statistical anisotropy of the power spectrum, reducing it from the previously claimed upper estimate of $\lesssim 10^{-2}$ to the level of at most $10^{-6}$, which is beyond the possibility of detection. The general conclusion is that a single-field inflationary scenario cannot produce statistical anisotropy of appreciable magnitude.

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Yuri Shtanov, Hanna Pyatkovska. 2009-04-12. Erratum: Statistical anisotropy in the inflationary universe. https://doi.org/10.1103/physrevd.80.023521 10.1103/physrevd.83.069904

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