Results 91 to 100 of about 2,808 (218)
Inhomogeneities from quantum collapse scheme without inflation
Physics Letters B, 2015 In this work, we consider the problem of the emergence of seeds of cosmic structure in the framework of the non-inflationary model proposed by Hollands and Wald.
Gabriel R. Bengochea +2 more
doaj +1 more source
, 2002 The big bang model and the history of the early universe according to the grand unified theories are introduced. The shortcomings of big bang are discussed together with their resolution by inflationary cosmology. Inflation, the subsequent oscillation and decay of the inflaton, and the resulting "reheating" of the universe are studied.
openaire +2 more sources
Axion Black Hole Solution in Non‐Metricity Gravity
Fortschritte der Physik, Volume 74, Issue 2, February 2026.Abstract A static, spherically symmetric black hole solution in symmetric teleparallel (non‐metricity) gravity sourced by an axion field is constructed. Starting from the modified field equations, exact configurations are obtained characterized by the mass M$M$ and an axion–geometry coupling β$\beta$, with temporal metric function A(r)=1−2Mr+βr$A(r)=1-\
A. Eid, G.G.L. Nashed
wiley +1 more source
Higher derivative D-term inflation in new-minimal supergravity
Physics Letters B, 2014 We revisit the D-term inflation and amend it with ghost-free higher derivative couplings of chiral superfields to super-curvature. These couplings realize a more generic inflationary phase in supergravity.
Iannis Dalianis, Fotis Farakos
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American Ethnologist, Volume 53, Issue 1, Page 34-44, February 2026.Abstract In 2012 the UN Security Council and the European Union bolstered US economic sanctions on Iran, disembedding the country's economy from financial markets. Since then, the sanctions have radically devalued Iran's currency, leading Iranians to seek a viable standard of value elsewhere. They have done so through ghachagh (fugitive) configurations
Emrah Yıldız
wiley +1 more source
String Cosmology versus Standard and Inflationary Cosmology
, 2008 String cosmology versus standard and inflationary cosmology M. Gasperini###$
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Closed inflationary universe models in Brane World Cosmology
, 2005 INDEXACIÓN: WEB OF SCIENCE.In this article we study closed inflationary universe models proposed by Linde in a brane world cosmological context. In this scenario we determine and characterize the existence of a closed universe, in presence of one self ...
Herrera, R, Del Campo, S, Saavedra, J
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Bounding field excursions along null geodesics with applications to cosmology
Journal of High Energy PhysicsScalar fields in theories of gravity often inhabit a moduli space of vacua, and coherent spatial or temporal variations in their expectation values can produce measurable gravitational effects.
Aidan Herderschee, Aron C. Wall
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A critical note on time in the multiverse [PDF]
, 2013 In recent analyses of standard, single-universe, cosmology, it was pointed out that specific assumptions regarding the distribution and motion of matter must be made in order to set up the cosmological standard model with a global time parameter. Relying
Zinkernagel, Henrik +3 more
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Principle of «Observability»: Why Cannot the Theory of the Infinite Universe be Realized?
RUDN Journal of Philosophy, 2009 The present work demonstrates that all cosmological theories obey an epistemological relation: all steps cosmology makes in the direction of acquiring the status of a natural science are inversely proportional to its steps in the direction of allowing ...
A N Pavlenko
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