Results 91 to 100 of about 406,699 (273)
Cosmology Due to Thermodynamics of Apparent Horizon
Annalen der Physik, EarlyView.Effective cosmological constant as a function of the Hubble rate H for different entropy parameters b. Figure shows the asymptotic of the effective cosmological constant. At H = 0 the effective cosmological constant vanishes. Abstract This study proposes new entropy of the apparent horizon Sh=(1/β)arctan(βSBH)$S_h=(1/\beta)\arctan (\beta S_{BH ...
S. I. Kruglov
wiley +1 more source
Phenomenological Inflationary Model in Supersymmetric Quantum Cosmology
Universe, 2022 We consider the effective evolution of a phenomenological model from FLRW supersymmetric quantum cosmology with a scalar field. The scalar field acts as a clock and inflaton.
Nephtalí E. Martínez-Pérez +2 more
doaj +1 more source
Is the spectrum of gravitational waves the “Holy Grail” of inflation?
European Physical Journal C: Particles and Fields, 2019 It is often said that detecting a spectrum of primordial gravitational waves via observing B-mode polarization of the Cosmic Microwave Background is the “Holy Grail” of inflation.
Robert H. Brandenberger
doaj +1 more source
Fortschritte der Physik, EarlyView.Abstract The unification of conformal and fuzzy gravities with internal interactions is based on the facts that i) the tangent group of a curved manifold and the manifold itself do not necessarily have the same dimensions and ii) both gravitational theories considered here have been formulated in a gauge theoretic way.
Gregory Patellis +3 more
wiley +1 more source
Holographic cosmology solutions of problems with pre-inflationary cosmology
Journal of High Energy Physics, 2020 In this paper we describe in detail how to solve the problems of pre-inflationary cosmology within the holographic cosmology model of McFadden and Skenderis [1].
Horatiu Nastase
doaj +1 more source
Catch-me-if-you-can: the overshoot problem and the weak/inflation hierarchy
Journal of High Energy Physics, 2022 We study the overshoot problem in the context of post-inflationary string cosmology (in particular LVS). LVS cosmology features a long kination epoch as the volume modulus rolls down the exponential slope towards the final minimum, with an energy density
Joseph P. Conlon, Filippo Revello
doaj +1 more source
Against interpretive exclusivism* Contre l'exclusivisme interprétatif
Journal of the Royal Anthropological Institute, EarlyView.Interpretive exclusivism is the dogma that we can only understand cultural systems by interpreting them, thereby ruling out causal explanations of cultural phenomena using scientific methods, for example based on measurement, comparison, and experiment.
Harvey Whitehouse
wiley +1 more source
Cosmic curvature from de Sitter equilibrium cosmology
, 2011 I show that the de Sitter Equilibrium cosmology generically predicts observable levels of curvature in the Universe today. The predicted value of the curvature depends only on the ratio of the density of non-relativistic matter to energy density in ...
Albrecht, Andreas
core +1 more source
Trans-Planckian censorship and inflationary cosmology [PDF]
Physical Review D, 2019 We study the implications of the recently proposed Trans-Planckian Censorship Conjecture (TCC) for early universe cosmology and in particular inflationary cosmology.
Alek Bedroya +3 more
semanticscholar +1 more source
Expected value, to a point: Moral decision‐making under background uncertainty
Noûs, EarlyView.Abstract Expected value maximization gives plausible guidance for moral decision‐making under uncertainty in many situations. But it has unappetizing implications in ‘Pascalian’ situations involving tiny probabilities of extreme outcomes. This paper shows, first, that under realistic levels of ‘background uncertainty’ about sources of value independent
Christian Tarsney
wiley +1 more source