Results 41 to 50 of about 359,649 (249)
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
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Inflation with a class of concave inflaton potentials in Randall–Sundrum model
European Physical Journal C: Particles and Fields, 2020 We investigate inflation with a class of concave inflaton potentials of the form $$\sim \phi ^n$$ ∼ϕn ...
Ngo Phuc Duc Loc
doaj +1 more source
Standard Model—axion—seesaw—Higgs portal inflation. Five problems of particle physics and cosmology solved in one stroke [PDF]
, 2016 We present a minimal extension of the Standard Model (SM) providing a consistent picture of particle physics from the electroweak scale to the Planck scale and of cosmology from inflation until today.
G. Ballesteros +3 more
semanticscholar +1 more source
Bounce inflation in $f(T)$ Cosmology: A unified inflaton-quintessence field [PDF]
, 2016 We investigate a bounce inflation model with a graceful exit into the Friedmann-Robertson-Walker (FRW) decelerated Universe within f(T)-gravity framework, where T is the torsion scalar in the teleparallelism.
K. Bamba +3 more
semanticscholar +1 more source
Tachyacoustic cosmology: An alternative to inflation [PDF]
Physical Review D, 2010 11 pages, LaTeX (V2: references added. Version submitted to PRD)
John Wang +5 more
openaire +3 more sources
Early and late universe holographic cosmology from a new generalized entropy
Physics Letters B, 2022 We propose a new four-parameter entropy function that generalizes the Tsallis, Rényi, Barrow, Sharma-Mittal, Kaniadakis and Loop Quantum Gravity entropies for suitable limits of the parameters.
Shin'ichi Nojiri +2 more
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Some clarifications on the duration of inflation in loop quantum cosmology [PDF]
, 2017 The prediction of a phase of inflation whose number of e-folds is constrained is an important feature of loop quantum cosmology. This work aims at giving some elementary clarifications on the role of the different hypotheses leading to this conclusion ...
B. Bolliet +3 more
semanticscholar +1 more source
Inflation and the cosmological constant [PDF]
Physical Review D, 2012 A particular compensation-type solution of the main cosmological constant problem has been proposed recently, with two massless vector fields dynamically canceling an arbitrary cosmological constant . The naive expectation is that such a compensation mechanism does not allow for the existence of an inflationary phase in the very early Universe ...
openaire +4 more sources
Effect of inflation on anisotropic cosmologies [PDF]
Physical Review D, 1986 The effects of anisotropic cosmologies on inflation are studied. By properly formulating the field equations it is possible to show that any model that undergoes sufficient inflation will become isotropic on scales greater than the horizon today.
Jensen, L.G., Stein-Schabes, J.A.
openaire +6 more sources
Inflation with the Starobinsky potential in loop quantum cosmology [PDF]
, 2015 A self-consistent pre-inflationary extension of the inflationary scenario with the Starobinsky potential, favored by Planck data, is studied using techniques from loop quantum cosmology (LQC).
B. Bonga, Brajesh Gupt
semanticscholar +1 more source