Cosmology and Nongalactic Astrophysics2021-12-28v4General Relativity and Quantum CosmologyHigh Energy Physics - PhenomenologyHigh Energy Physics - Theory
We discuss implications of the latest BICEP/Keck data release for inflationary models, with special emphasis on the cosmological attractors which can describe all presently available inflation-related observational data. These models are compatible with any value of the tensor to scalar ratio r, all the way down to r=0. Some of the string theory motivated models of this class predict 10−3≤r≤10−2. The upper part of this range can be explored by the ongoing BICEP/Keck observations.
@article{arxiv.2110.10902,
title = {BICEP/Keck and Cosmological Attractors},
author = {Renata Kallosh and Andrei Linde},
journal= {arXiv preprint arXiv:2110.10902},
year = {2021}
}
Comments
14 pages, 10 figures. A figure added with a comparison of the new constraints on r and $n_s$ given in 2112.07961 and predictions of $\alpha$-attractors