Results 111 to 120 of about 2,808 (218)

The evolution of scalar fields and inflationary cosmology [PDF]

, 1993
The thermal restoration of symmetry in Grand Unified Field Theories with Coleman-Weinberg symmetry breaking is considered. A concise rederivation of the high temperature approximation to the one loop effective potential is given and the critical ...
Easther, Richard John Maddock
core   +1 more source

Constraining barrow entropy-based cosmology with power-law inflation. [PDF]

Eur Phys J C Part Fields, 2023
Luciano GG.
europepmc   +1 more source

Warm inflation in Weyl geometric gravity

European Physical Journal C: Particles and Fields
We investigate the warm inflationary scenario in Weyl geometric gravity theory, in which the action is constructed by adding matter to the simplest conformally invariant gravitational action in Weyl geometry.
Runhua Huang, Tiberiu Harko, Shi-Dong Liang, Hong-Hao Zhang, Lei Ming   +4 more
doaj   +1 more source

Trans-Planckian footprints in inflationary cosmology

Physics Letters B, 2004
We consider a minimum uncertainty vacuum choice at a fixed energy scale Lambda as an effective description of trans-Planckian physics, and discuss its implications for the linear perturbations of a massless scalar field in power-law inflationary models.
ALBERGHI, GIAN LUIGI, CASADIO, ROBERTO, TRONCONI, ALESSANDRO   +2 more
openaire   +2 more sources

A critical look at inflationary cosmology

, 1999
Inflationary cosmology won a large following on the basis of the claim that it solves various problems that beset the standard big bang model. We argue that these problems concern not the empirical adequacy of the standard model but rather the nature of ...
Earman, John, Mosterin, Jesus
core  

Stability Properties of Geometrothermodynamic Cosmological Models. [PDF]

Entropy (Basel), 2023
Beissen N, Abishev M, Khassanov M, Aitassov T, Mamatova S, Toktarbay S.   +5 more
europepmc   +1 more source

Cosmological parameter estimation and the inflationary cosmology

, 2002
Leach SM, Liddle AR, Martin J, Schwarz D. Cosmological parameter estimation and the inflationary cosmology. PHYSICAL REVIEW D. 2002;66(2): 023515.We consider approaches to cosmological parameter estimation in the inflationary cosmology, focusing on the ...
Martin, J, Dominik J. Schwarz, Samuel M Leach (16063793), Andrew R Liddle (16045385), Andrew R. Liddle, Liddle, AR, Dominik J Schwarz (16077572), Leach, SM, Jérôme Martin, Jérôme Martin (178201), Samuel M. Leach, Schwarz, Dominik ; https://orcid.org/   +11 more
core   +1 more source

Time evolution of the equation of state during perturbative reheating and its impact on the inflationary tensor perturbation spectrum

Nuclear Physics B
The spectrum of inflationary tensor perturbations is one of the very few available probes of the post-inflationary reheating epoch, and it is strongly influenced by the Universe's equation of state during this period.
Avirup Ghosh, Deep Ghosh
doaj   +1 more source

Principles, Progress and Problems in Inflationary Cosmology

, 2002
Inflationary cosmology has become one of the cornerstones of modern cosmology. Inflation was the first theory within which it was possible to make predictions about the structure of the Universe on large scales, based on causal physics.
Brandenberger, R H
core  

Inflationary spectra and observations in loop quantum cosmology

, 2012
We review some recent progress in the extraction of inflationary observables in loop quantum cosmology. Inverse-volume quantum corrections induce a growth of power in the large-scale cosmological spectra and are constrained by ...
Calcagni, G.
core   +1 more source