Results 81 to 90 of about 1,465,410 (380)

Science with the space-based interferometer LISA. IV: probing inflation with gravitational waves [PDF]

open access: yes, 2016
We investigate the potential for the LISA space-based interferometer to detect the stochastic gravitational wave background produced from different mechanisms during inflation.
N. Bartolo   +13 more
semanticscholar   +1 more source

Affine inflation [PDF]

open access: yesPhysical Review D, 2017
Affine gravity, a gravity theory based on affine connection with no notion of metric, supports scalar field dynamics only if scalar fields have non-vanishing potential. The non-vanishing vacuum energy ensures that the cosmological constant is non-vanishing. It also ensures that the energy-momentum tensor of vacuum gives the dynamically generated metric
Azri, Hemza, Demir, Durmus
openaire   +4 more sources

Shaping Inflation Expectations in the Czech Economy: a Case of Financial Analysts and Corporate Managers [PDF]

open access: yesStatistika: Statistics and Economy Journal
Inflation expectations play an important role in the transmission mechanism of inflation targeting in the context of the length and costs of the disinflationary process.
Martin Mandel, Jan Vejmělek
doaj   +1 more source

Inflation on Fractional Branes: D--Brane Inflation as D--Term Inflation

open access: yes, 2003
We describe a D--brane inflation model which consists of two fractional D3 branes separated on a transverse $T^2 \times K3$. Inflation arises due to the resolved orbifold singularity of $K3$ which corresponds to an anomalous D--term on the brane. We show
A.H. Guth   +18 more
core   +1 more source

Modular Inflation Observables and $j$-Inflation Phenomenology [PDF]

open access: yes, 2017
Modular inflation is the restriction to two fields of automorphic inflation, a general group based framework for multifield scalar field theories with curved target spaces, which can be parametrized by the comoving curvature perturbation ${\cal R}$ and ...
Schimmrigk, Rolf
core   +1 more source

Preferences over Inflation and Unemployment: Evidence from Surveys of Happiness

open access: yes, 2001
Modern macroeconomics textbooks rest upon the assumption of a social welfare function defined on inflation, p, and unemployment, U. However, no formal evidence for the existence of such a function has been presented in the literature. Although an optimal
R. Tella   +2 more
semanticscholar   +1 more source

Towards the theory of reheating after inflation [PDF]

open access: yes, 1997
Reheating after inflation occurs due to particle production by the oscillating inflaton field. In this paper we describe the perturbative approach to reheating, and then concentrate on effects beyond the perturbation theory. They are related to the stage
L. Kofman, Andrei Linde, A. Starobinsky
semanticscholar   +1 more source

The zoo plot meets the swampland: mutual (in)consistency of single-field inflation, string conjectures, and cosmological data [PDF]

open access: yesClassical and quantum gravity, 2018
We consider single-field inflation in light of string-motivated ‘swampland’ conjectures suggesting that effective scalar field theories with a consistent UV completion must have field excursion , in combination with a sufficiently steep potential, . Here,
W. Kinney, S. Vagnozzi, L. Visinelli
semanticscholar   +1 more source

The rs10191329 Risk Allele Is Associated With Pronounced Retinal Layer Atrophy in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To investigate whether the rs10191329 risk allele in the DYSF–ZNF638 locus, which is implicated in central nervous system resilience rather than immune‐mediated pathology, is associated with retinal layer thinning, a biomarker of neuroaxonal damage in relapsing multiple sclerosis (RMS). Methods From a prospective observational study,
Gabriel Bsteh   +22 more
wiley   +1 more source

Recent Developments in Warm Inflation

open access: yesUniverse, 2023
Warm inflation, its different particle physics model implementations, and the implications of dissipative particle production for its cosmology are reviewed.
Vahid Kamali   +2 more
doaj   +1 more source

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