Results 31 to 40 of about 242,666 (205)
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
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Reheating via gravitational particle production in simple models of quintessence or $\Lambda$CDM inflation [PDF]
, 2017 We have tested some simple $\Lambda$CDM (the same test is also valid for quintessence) inflation models, imposing that they match with the recent observational data provided by the BICEP and Planck's team and leading to a reheating temperature, which is ...
Haro, Jaume, Saló, Llibert Aresté
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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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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 ...
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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.
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Inflation in loop quantum cosmology [PDF]
Physical Review D, 2019 18 pages, 6 tables.
Edmund J. Copeland +3 more
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Stringy Effects During Inflation and Reheating [PDF]
, 2005 We consider inflationary cosmology in the context of string compactifications with multiple throats. In scenarios where the warping differs significantly between throats, string and Kaluza-Klein physics can generate potentially observable corrections to ...
A. Vilenkin +6 more
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Holographic cosmology and tachyon inflation [PDF]
International Journal of Modern Physics A, 2018 After a brief introduction to the AdS/CFT holography, a tachyon inflation will be discussed in the framework of holographic cosmology. The model is based on a holographic braneworld scenario with an effective tachyon field on a D3-brane located at the holographic bound of an asymptotic ADS5 bulk.
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Cosmology of the tachyon in brane inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2007 30 pages, 2 figures; v3, minor revision, JCAP ...
Sarah Shandera, Louis Leblond
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Novel vacuum conditions in inflationary collapse models
Physics Letters B, 2017 Within the framework of inflationary models that incorporate a spontaneous reduction of the wave function for the emergence of the seeds of cosmic structure, we study the effects on the primordial scalar power spectrum by choosing a novel initial quantum
Gabriel R. Bengochea, Gabriel León
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