Results 21 to 30 of about 180,985 (262)

Reheating in small-field inflation on the brane: the swampland criteria and observational constraints in light of the PLANCK 2018 results

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We study cosmological inflation and its dynamics in the framework of the Randall–Sundrum II brane model. In particular, we analyze in detail four representative small-field inflationary potentials, namely Natural inflation, Hilltop inflation, Higgs-like ...
Constanza Osses   +2 more
doaj   +1 more source

Phenomenological Inflationary Model in Supersymmetric Quantum Cosmology

open access: yesUniverse, 2022
We consider the effective evolution of a phenomenological model from FLRW supersymmetric quantum cosmology with a scalar field. The scalar field acts as a clock and inflaton.
Nephtalí E. Martínez-Pérez   +2 more
doaj   +1 more source

Gravitational Fluctuations as an Alternative to Inflation III. Numerical Results

open access: yesUniverse, 2020
Power spectra play an important role in the theory of inflation, and their ability to reproduce current observational data to high accuracy is often considered a triumph of inflation, largely because of a lack of credible alternatives.
Herbert W. Hamber   +2 more
doaj   +1 more source

Inflationary cosmology: from theory to observations [PDF]

open access: yesRevista mexicana de física E, 2018
The main aim of this paper is to provide a qualitative introduction to the cosmological inflation theory and its relationship with current cosmological observations.
J. Alberto Vazquez Gonzalez   +2 more
semanticscholar   +1 more source

Von Neumann algebra description of inflationary cosmology

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We study the von Neumann algebra description of the inflationary quasi-de Sitter (dS) space. Unlike perfect dS space, quasi-dS space allows the nonzero energy flux across the horizon, which can be identified with the expectation value of the static time ...
Min-Seok Seo
doaj   +1 more source

Branes and inflationary cosmology

open access: hybridPhysics Letters B, 2002
14 pages, LaTeX, 4 eps ...
Bumseok Kyae, Qaisar Shafi
openalex   +4 more sources

How Generic Is Eternal Inflation?

open access: yesSci, 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

Through the Big Bang in inflationary cosmology [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2019
Singularities in General Relativity are regions where the description of spacetime in terms of a pseudo-Riemannian geometry breaks down. The theory seems unable to predict the evolution of the physical degrees of freedom around and beyond such regions ...
F. Mercati
semanticscholar   +1 more source

Inflationary cosmology in RS-I [PDF]

open access: hybridBrazilian Journal of Physics, 2005
2 pages, 2 figures, 100 years of relativity international conference on classical and quantum aspects of gravity and ...
Michele Ferraz Figueiró
openalex   +6 more sources

Prospects of Inflationary Cosmology [PDF]

open access: green, 1996
In this review I briefly describe the evolution of the inflationary theory from the scenario based on the idea of supercooling and expansion in the false vacuum toward the theory of eternally expanding self-reproducing inflationary universe. I describe recent development of inflationary cosmology with Omega < 1, and then discuss some issues related ...
Andrei Linde
  +5 more sources

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