CMB Anisotropies and Inflation from Non-Standard Spinors

Details CMB Anisotropies and Inflation from Non-Standard Spinors CMB Anisotropies and Inflation from Non-Standard Spinors

2007-10-10

arxiv.org/abs/0710.2003v4

Phys.Lett.B663:168-171,2008

Astronomy and Astrophysics

Astrophysics

5 pages; Typo corrected

Scientific paper

10.1016/j.physletb.2008.04.008

The apparent alignment of the cosmic microwave background multipoles on large scales challenges the standard cosmological model. Scalar field inflation is isotropic and cannot account for the observed alignment. We explore the imprints, a non-standard spinor driven inflation would leave on the cosmic microwave background anisotropies. We show it is natural to expect an anisotropic inflationary expansion of the Universe which has the effect of suppressing the low multipole amplitude of the primordial power spectrum, while at the same time to provide the usual inflationary features.

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