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arXiv · 1502.07292

Towards a proof of the equivalence between FRW background expansion and statistical isotropy

Yeinzon Rodriguez·L. Gabriel Gomez·Carlos M. Nieto
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Abstract

We will expose in this paper our advances towards a proof of the equivalence between FRW background expansion, during some period of time that contains primordial inflation, and the statistical isotropy of the primordial curvature perturbation $\zeta$ at the end of this period of time. Our motivation rests on the growing interest in the existence of a preferred direction in the Universe hinted by the continuous presence of anomalies in the CMB data.

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Yeinzon Rodriguez, L. Gabriel Gomez, Carlos M. Nieto. 2015-02-25. Towards a proof of the equivalence between FRW background expansion and statistical isotropy. https://arxiv.org/abs/1502.07292

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