Results 51 to 60 of about 49,682 (257)
Inflationary Cosmology and Quantization Ambiguities in Semi-Classical Loop Quantum Gravity [PDF]
, 2004 In loop quantum gravity, modifications to the geometrical density cause a self-interacting scalar field to accelerate away from a minimum of its potential.
A. Ashtekar +30 more
core +3 more sources
Tachyonic inflation in loop quantum cosmology
European Physical Journal C: Particles and Fields, 2019 A tachyon field might be responsible for cosmological inflation at an early time and contribute to cosmological dark matter at a later time. We investigate tachyonic inflation by analyzing a tachyon field with different potentials in the framework of ...
Kui Xiao
doaj +1 more source
The warm inflationary universe
, 2008 In the past decade, the importance of dissipation and fluctuation to inflationary dynamics has been realized and has led to a new picture of inflation called warm inflation.
Arjun Berera +8 more
core +1 more source
Eternal inflation with Liouville cosmology [PDF]
Nuclear Physics B, 2011 32 pages, v2: published version, many ...
openaire +3 more sources
Fundamental forces and scalar field dynamics in the early universe
Physics Letters B, 2020 Scalar weak gravity conjectures (SWGCs) attempt to pinpoint the ranges of couplings consistent with a fundamental theory of all interactions. We identify a generic dynamical consequence of these conjectures for cosmology and show that SWGCs imply a ...
Alexander Kusenko +3 more
doaj +1 more source
, 2002 We review the broad status of cosmology and discuss a model of fluctuational cosmology in which the universe is created in a phase transition like phenomenon mimicking inflation, and which further consistently explains latest observations like the ever ...
B.G. Sidharth +28 more
core +3 more sources
Unity of Cosmological Inflation Attractors
Physical Review Letters, 2015 Recently, several broad classes of inflationary models have been discovered whose cosmological predictions, in excellent agreement with Planck, are stable with respect to significant modifications of the inflaton potential. Some classes of models are based on a nonminimal coupling to gravity. These models, which we call ξ attractors, describe universal
Galante, Mario +3 more
openaire +3 more sources
A symmetric DBI action theory and its applications to inflationary cosmology
European Physical Journal C: Particles and Fields, 2021 The Dirac-Born-Infeld (DBI) field theory in string theory is important and can provide the field of the universe’s inflation. At the same time, it provides a causal mechanism for generating the original density perturbation, thereby providing the ...
Xiaokun Yang +2 more
doaj +1 more source
Descolonizando Decolonizing Linguistics, or the Perils of Refusing Pero no Mucho
Journal of Sociolinguistics, EarlyView.Kakaretso Tshekatsheko eno e e tseneletseng ya Decolonizing Linguistics e baya kgatiso eno mo gare ga dikganetsano tsa Amerika Borwa ka ga sekolone go botsolotsa melelwane ya dipuisano tsa segompieno tsa go tlosa bokolone mo thutapuong ya Seesemane. Ke ikaegile ka tshekatsheko ya ga Cusicanqui ya mogopolo wa go ganetsa sekolone, le mogopolo wa ga Bispo,
Rodrigo Borba
wiley +1 more source
Non‐innocent solvents in meteorite extractions: Evidence for artifact formation
Meteoritics &Planetary Science, EarlyView.Abstract Solvent extraction is a cornerstone of meteoritic organic and inorganic chemistry, yet the assumption that common solvents act as chemically inert media is becoming increasingly untenable. This study reports that low‐molecular‐weight alcohols, particularly methanol and ethanol, are “non‐innocent” solvents when used to extract soluble sulfur ...
N. Randazzo +6 more
wiley +1 more source