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How Generic Is Eternal Inflation?
Sci, 2022 Everlasting inflation has far-reaching implications for cosmology and the standing of self-localizing inferences made by observers, which have been subjects of renewed interest in light of the growing acceptance of theory landscapes and the attendant ...
Ross Greenwood, Anthony Aguirre
doaj +1 more source
Parity-odd and even trispectrum from axion inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 The four-point correlation function of primordial scalar perturbations has parity-even and parity-odd contributions and the parity-odd signal in cosmological observations is opening a novel window to look for new physics in the inflationary epoch.
Xuce Niu +3 more
semanticscholar +1 more source
Pre-inflationary dynamics of Starobinsky inflation and its generization in loop quantum Brans-Dicke cosmology [PDF]
Journal of Cosmology and Astroparticle Physics, 2018 Recently, the nonperturbative quantization scheme of loop quantum gravity has been extended to the Brans-Dicke theory and the corresponding loop quantum Brans-Dicke cosmology has been derived, which provides an essential platform to explore inflationary ...
Wei-Jian Jin, Yong-Liang Ma, Tao Zhu
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Palatini R 2 quintessential inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 We construct a model of quintessential inflation in Palatini R 2 gravity employing a scalar field with a simple exponential potential and coupled to gravity with a running non-minimal coupling.
K. Dimopoulos +3 more
semanticscholar +1 more source
Massive neutrino self-interactions and inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 Certain inflationary models like Natural inflation (NI) and Coleman-Weinberg inflation (CWI) are disfavoured by cosmological data in the standard ΛCDM+r model (where r is the scalar-to-tensor ratio), as these inflationary models predict the regions in ...
Shouvik Roy Choudhury +2 more
semanticscholar +1 more source
Does inflation squeeze cosmological perturbations? [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 There seems to exist agreement about the fact that inflation squeezes the quantum state of cosmological perturbations and entangles modes with wavenumbers k⟶ and -k⟶.
I. Agulló +2 more
semanticscholar +1 more source
MSSM inflation and cosmological attractors [PDF]
International Journal of Geometric Methods in Modern Physics, 2018 Inflationary scenarios motivated by the minimal supersymmetric standard model (MSSM) where five scalar fields are non-minimally coupled to gravity are considered. The potential of the model and the function of non-minimal coupling are polynomials of two Higgs doublet convolutions.
M. N. Dubinin +3 more
openaire +3 more sources
Reheating in holographic cosmology and connecting to Λ-MSSM constructions for particle physics
Journal of High Energy Physics, 2021 In this paper we model the transition from the non-geometric holographic cosmology regime, to the usual radiation dominated (RD) cosmology, known as reheating in the case of (perturbative) inflation.
Horatiu Nastase
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Tachyacoustic cosmology: An alternative to inflation [PDF]
Physical Review D, 2010 11 pages, LaTeX (V2: references added. Version submitted to PRD)
Bessada, Dennis +3 more
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Pre-Big-Bang in String Cosmology [PDF]
, 1998 We compute the amount of inflation required to solve the horizon problem of cosmology in the pre-big-bang scenario. First we give a quick overview of string cosmology as developed by Veneziano and collaborators.
Borunda, Monica, Ruiz-Altaba, M.
core +2 more sources