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@ARTICLE{DAmico:485211,
author = {D’Amico, Guido and Kaloper, Nemanja and Westphal,
Alexander},
title = {{G}eneral double monodromy inflation},
journal = {Physical review / D},
volume = {105},
number = {10},
issn = {2470-0010},
address = {Melville, NY},
publisher = {Inst.},
reportid = {PUBDB-2022-06598, arXiv:2112.13861. DESY-22-012},
pages = {103527},
year = {2022},
note = {ISSN 2470-0029 not unique: **2 hits**.},
abstract = {We revisit the rollercoaster cosmology based on multiple
stages of monodromy inflation. Working within the framework
of effective flux monodromy field theory, we include the
full range of strong coupling corrections to the inflaton
sector. We find that flattened potentials $V \sim \phi^p +
\ldots$ with $p \lesssim 1/2$, limited to $ N \lesssim 25 -
40$ efolds in the first stage of inflation, continue to fit
the CMB. They yield $0.96 \lesssim n_s \lesssim 0.97$, and
produce relic gravity waves with $0.006 \lesssim r \lesssim
0.035$, in full agreement with the most recent bounds from
BICEP/Keck. The nonlinear derivative corrections generated
by strong dynamics in EFT also lead to equilateral
non-Gaussianity $f_{NL}^{eq} \simeq {\cal O}(1) - {\cal
O}(10)$, close to the current observational bounds. Finally,
in multi-stage rollercoaster, an inflaton-hidden sector
$U(1)$ coupling can produce a tachyonic chiral vector
background, which converts rapidly into tensors during the
short interruption by matter domination. The produced
stochastic gravity waves are chiral, and so they may be
clearly identifiable by gravity wave instruments like LISA,
Big Bang Observatory, Einstein Telescope, NANOgrav or SKA,
depending on the precise model realization. We also point
out that the current attempts to resolve the $H_0$ tension
using early dark energy generically raise $n_s$. This may
significantly alter the impact of BICEP/Keck data on models
of inflation.},
cin = {T},
ddc = {530},
cid = {I:(DE-H253)T-20120731},
pnm = {611 - Fundamental Particles and Forces (POF4-611) /
STRINGFLATION - Inflation in String Theory - Connecting
Quantum Gravity with Observations (647995)},
pid = {G:(DE-HGF)POF4-611 / G:(EU-Grant)647995},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16},
eprint = {2112.13861},
howpublished = {arXiv:2112.13861},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2112.13861;\%\%$},
UT = {WOS:000807546100003},
doi = {10.1103/PhysRevD.105.103527},
url = {https://bib-pubdb1.desy.de/record/485211},
}