Results 131 to 140 of about 20,263 (249)

Hillclimbing inflation in metric and Palatini formulations

open access: yesPhysics Letters B, 2019
A new setup of cosmic inflation with a periodic inflaton potential and conformal factor is discussed in the metric and Palatini formulations of gravity.
Ryusuke Jinno   +3 more
doaj   +1 more source

Gravitational Radiation from Preheating with Many Fields

open access: yes, 2010
Parametric resonances provide a mechanism by which particles can be created just after inflation. Thus far, attention has focused on a single or many inflaton fields coupled to a single scalar field.
A.A. Starobinsky   +10 more
core   +1 more source

Reconstructing the Inflaton Potential [PDF]

open access: yes, 1994
A review is presented of recent work by the authors concerning the use of large scale structure and microwave background anisotropy data to determine the potential of the inflaton field.
Abney, M   +5 more
core   +1 more source

Consistent Cosmic Microwave Background Spectra from Quantum Depletion

open access: yes, 2015
Following a new quantum cosmological model proposed by Dvali and Gomez, we quantitatively investigate possible modifications to the Hubble parameter and following corrections to the cosmic microwave background spectrum.
Casadio, Roberto   +2 more
core   +1 more source

Super-heavy dark matter – Towards predictive scenarios from inflation

open access: yesNuclear Physics B, 2017
A generic prediction of the Coleman–Weinberg inflation is the existence of a heavy particle sector whose interactions with the inflaton, the lightest state in this sector, generate the inflaton potential at loop level.
Kristjan Kannike   +2 more
doaj   +1 more source

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