Results 101 to 110 of about 4,095 (225)
Cosmology with inhomogeneous magnetic fields [PDF]
, 2007 We review spacetime dynamics in the presence of large-scale electromagnetic fields and then consider the effects of the magnetic component on perturbations to a spatially homogeneous and isotropic universe.
Roy Maartens +5 more
core +1 more source
, 2021 We study primordial cosmology with two scalar fields that participate in inflation at the same time, by coupling quantum gravity (i.e., the theory R+R2+C2 with the fakeon prescription/projection for C2) to a scalar field with a quadratic potential.
Anselmi D.
core +1 more source
Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.Abstract The fractal dimensions of lava flow margins on Earth often correlate with their flow morphologies and have been used to tentatively identify flow morphology on other rocky planets where fine‐scale observations are limited. Previous studies of lava flow margins on Venus have reported fractal dimensions (D) mostly within the range between 1.05 ...
E. M. Recchuiti +3 more
wiley +1 more source
Thermodymiamics and inflation [PDF]
, 1992 The standard model of particle physics is introduced, and extensions of it, which may be of cosmological relevance, are considered. The inflationary paradigm is reviewed as an extension of the standard cosmological model.
Langbein, Rollo Foster
core
, 2015 This is the summary of two lectures that aim to give an overview of cosmology. I will not try to be too rigorous in derivations, nor to give a full historical overview.
Verde, L.
core +1 more source
Special points of inflation in flux compactifications
, 2015 We study the realization of axion inflation models in the complex structure moduli spaces of Calabi-Yau threefolds and fourfolds. The axions arise close to special points of these moduli spaces that admit discrete monodromy symmetries of infinite order ...
Sub String Theory Cosmology and ElemPart +4 more
core +1 more source
Failure of the stochastic approach to inflation beyond slow-roll [PDF]
, 2019 After giving a pedagogical review we clarify that the stochastic approach to inflation is generically reliable only at zeroth order in the (geometrical) slow-roll parameter $\epsilon_1$ if and only if $\epsilon_2^2\ll 6/\epsilon_1$, with the notable ...
Prokopec, T. +4 more
core +1 more source
Scaling solutions for dilaton quantum gravity
Physics Letters B, 2017 Scaling solutions for the effective action in dilaton quantum gravity are investigated within the functional renormalization group approach. We find numerical solutions that connect ultraviolet and infrared fixed points as the ratio between scalar field ...
T. Henz, J.M. Pawlowski, C. Wetterich
doaj +1 more source
Constraining fundamental physics with cosmology [PDF]
, 2009 textIt is shown in three examples that future cosmological data may allow us to constrain fundamental physics in interesting ways. The first example illustrates that correlations in the polarization of the cosmic microwave background may allow us to ...
Raphael Manfred Flauger +1 more
core
, 2019 This monograph discusses cosmological inflation and provides exact and slow roll solutions. It also reviews new and advanced approaches of exact solutions construction with canonical scalar fields, including application of generating functions methods ...
Chervon, Sergei +7 more
core +1 more source