Results 191 to 200 of about 2,808 (218)

Inflationary Cosmology

Lecture Notes in Physics, 2007
exaly   +2 more sources

Inflationary axion cosmology

Physical Review Letters, 1991
If Peccei-Quinn (PQ) symmetry is broken after inflation, the initial axion angle is a random variable on cosmological scales; based on this fact, estimates of the relic-axion mass density give too large a value if the axion mass is less than about 10 to the -6th eV. This bound can be evaded if the universe underwent inflation after PQ-symmetry breaking
, Turner, , Wilczek
openaire   +2 more sources

Inflationary cosmology

Pramana, 1993
We review the basic features of the inflationary scenarios associated with phase transitions in the very early universe.
openaire   +1 more source

Exact inflationary cosmologies with exit

Physical Review D, 1995
We find exact inflationary solutions with exit, including exact forms of the potential, by specifying the rate of expansion and using the number of e-foldings as the effective dynamical variable. These include solutions in which the potential drives nearly exponential or power-law inflation for ${\mathit{t}}_{\mathit{i}}$\ensuremath{\le}t${\mathit{t}}_{
, Maartens, , Taylor, , Roussos
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Inflationary Cosmology

This work has been archived as it has been superseded by more recent developments in our model. In light of new insights, the concept of inflation as presented here is no longer deemed necessary. For the latest and most accurate formulation, please refer to our updated work: https://zenodo.org/records/15046630 ...
openaire   +3 more sources

Inflationary Cosmology I

2022
Eitan Abraham, Andrés J. Kreiner
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Diffusive inflationary cosmology

Journal of Geometry and Physics, 1990
The author considers the Ricci flow equation \(g'(t)=-2k Ric(g(t))+Dg(t)\) for a Riemannian metric g(t) on a compact 3-manifold, where k and D are some constants. This is related to general relativity by considering a corresponding Lorentzian metric \(^{(4)}g=-c^ 2dt^ 2+g(t).\) For metrics of this form, Einstein's vacuum field equation with ...
openaire   +1 more source

Supersymmetric inflationary cosmology

Physical Review D, 1986
openaire   +2 more sources

Inflationary cosmology: First 30+ years

International Journal of Modern Physics D, 2015
Jun'Ichi Yokoyama
exaly  

Iso-Spectral Potentials and Inflationary Quantum Cosmology

International Journal of Theoretical Physics, 2006
M Sabido, J Socorro, Socorro J
exaly