Results 1 to 10 of about 48,479 (254)
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
core +4 more sources
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
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
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
Pre-Big-Bang in String Cosmology [PDF]
, 1998 We compute the amount of inflation required to solve the horizon problem of cosmology in the pre-big-bang scenario. First we give a quick overview of string cosmology as developed by Veneziano and collaborators.
Borunda, Monica, Ruiz-Altaba, M.
core +2 more sources
Physics Letters B, 2022 In Chain Inflation the universe tunnels along a series of false vacua of ever-decreasing energy. The main goal of this paper is to embed Chain Inflation in high energy fundamental physics.
Katherine Freese +2 more
doaj +1 more source
Inflation in loop quantum cosmology [PDF]
Physical Review D, 2019 18 pages, 6 tables.
Edmund J. Copeland +3 more
openaire +3 more sources
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
core +3 more sources
Inflation and Alternatives with Blue Tensor Spectra
, 2014 We study the tilt of the primordial gravitational waves spectrum. A hint of blue tilt is shown from analyzing the BICEP2 and POLARBEAR data. Motivated by this, we explore the possibilities of blue tensor spectra from the very early universe cosmology ...
Wang, Yi, Xue, Wei
core +5 more sources
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
openaire +4 more sources