Results 91 to 100 of about 4,095 (225)

ΛCDM Cosmology + Chaotic Inflation

open access: yes, 2015
ΛCDM cosmology is described in terms of general relativity and the Robertson-Walker metric. The evolution of the observable universe, currently dominated by dark energy (Λ) and cold dark matter (CDM), is presented in terms of its thermal history.
Farago, Peter A
core   +1 more source

Inflationary resolution of the initial singularity

open access: yesPhysics Letters B
The inflationary paradigm has transformed our understanding of the early universe; yet most inflationary models are considered geodesically past-incomplete, suggesting a beginning of time or a primordial Big Bang singularity. The Borde-Guth-Vilenkin (BGV)
Damien A. Easson, Joseph E. Lesnefsky
doaj   +1 more source

Psycholytic Therapy Using LSD: a Realist Review

open access: yesBrain and Behavior, Volume 16, Issue 4, April 2026.
Psycholytic therapy using d‐lysergic acid diethylamide (LSD) appears safe and therapeutically effective when delivered with strong therapeutic trust, extensive preparation, and more than ten sessions. Flexible, relationally focused methods and creative integration work are associated with better outcomes and reduced adverse events.
Hamish Grime, Eugenia Drini
wiley   +1 more source

Stability of Accelerating Cosmology in Two Scalar-Tensor Theory: Little Rip <em>versus</em> de Sitter

open access: yesEntropy, 2012
We develop the general reconstruction scheme in two scalar model. The quintom-like theory which may describe (different) non-singular Little Rip or de Sitter cosmology is reconstructed.
Yusaku Ito   +2 more
doaj   +1 more source

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

D-term inflation in D-brane cosmology

open access: yes, 2005
We consider hybrid inflation in the braneworld scenario. In particular, we consider inflation in global supersymmetry with the D-terms in the scalar potential for the inflaton field to be the dominant ones (D-term inflation).
Panotopoulos, G.
core   +1 more source

Clockwork axions in cosmology. Is chromonatural inflation chrononatural?

open access: yesJournal of High Energy Physics, 2018
Many cosmological models rely on large couplings of axions to gauge fields. Examples include theories of magnetogenesis, inflation on a steep potential, chiral gravitational waves, and chromonatural inflation. Such theories require a mismatch between the
Prateek Agrawal, JiJi Fan, Matthew Reece
doaj   +1 more source

The cosmological heavy ion collider: Fast thermalization after cosmic inflation

open access: yesPhysics Letters B, 2020
Heavy-ion colliders have revealed the process of “fast thermalization”. This experimental break-through has led to new theoretical tools to study the thermalization process at both weak and strong coupling.
Evan McDonough
doaj   +1 more source

Inclusion within innovative learning environments: A new materialist stratigraphy of spatio–political assemblages

open access: yesReview of Education, Volume 14, Issue 1, April 2026.
Abstract This conceptual inquiry addresses a gap in research on inclusion within Innovative Learning Environments (ILEs): while ILEs are widely promoted as inclusive, studies often focus on well‐resourced schools and overlook how policy and space intra‐act as mutually shaping processes that produce both inclusion and exclusion.
Erfan Heidari, Marian Mahat
wiley   +1 more source

The dynamics of cosmological scenarios inspired by quantum gravity

open access: yes, 2006
PhDIn this thesis we study the dynamics of cosmological scenarios inspired by quantum gravity. Part I investigates novel features of the semi-classical regime of homogeneous and isotropic loop quantum cosmology.
Mulryne, David James
core  

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