Journal
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Volume -, Issue 12, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1475-7516/2021/12/008
Keywords
inflation; Inflation and CMBR theory; primordial gravitational waves (theory); cosmological parameters from CMBR
Funding
- SITP
- US National Science Foundation [PHY-2014215]
- Simons Foundation Origins of the Universe program (Modern Inflationary Cosmology collaboration)
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This study discusses the implications of the latest BICEP/Keck data release for inflationary models, focusing on cosmological attractors that can describe all available inflation-related observational data. These models are compatible with any value of the tensor to scalar ratio r, and some string theory motivated models predict 10^(-3) <= r <= 10^(-2). The upper part of this range can be explored by ongoing BICEP/Keck observations.
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.
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