Results 91 to 100 of about 32,779 (246)
Particle Physics and Inflationary Cosmology [PDF]
Physics Today, 1987 With the invention of unified theories of strong, weak, electromagnetic and gravitational interactions, elementaryparticle physics has entered a very interesting and unusual stage of its development. The end of the 1960s saw the introduction of the Glashow-Weinberg-Salam unification of the weak and electromagnetic interactions.
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Coordinate‐ and Spacetime‐Independent Quantum Physics
Annalen der Physik, Volume 538, Issue 1, January 2026.This article studies in the framework of quantum field theory in curved spacetime, if there exists a single zero‐rank‐tensor solution of a Klein‐Gordon PDE, being valid at once for the depicted spacetimes. The answer is shown to be affirmative, even for a class of such solutions having the standard applications in particle physics. ABSTRACT The concept
Viacheslav A. Emelyanov, Daniel Robertz
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Signals from Fermionic inflationary cosmology with Yukawa interaction
Physics Letters BWe investigate an inflationary model wherein the Dirac field ψ is directly coupled to a scalar inflaton ϕ via a Yukawa interaction gϕψ¯ψ and examine the resulting observational implications.
Lin-Hong Sui +3 more
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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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Direct Detection of the Primordial Inflationary Gravitational Waves
, 2009 Inflationary cosmology is successful in explaining a number of outstanding cosmological issues including the flatness, the horizon and the relic issues.
Mukhanov V. F. +3 more
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, 1997 Inflation is a bold and expansive extension of the Standard Cosmology. It holds the promise to extend our understanding of the Universe to within 10^{-32}sec of the big bang and answer most of the pressing questions in cosmology. Its boldest assertion is that all the structure observed in the Universe today arose from quantum-mechanical fluctuations on
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Economic Anthropology, Volume 13, Issue 1, January 2026.ABSTRACT The khipu knotted string records in the ancient Andes were accounting systems, but they did not indicate any concepts of commensurability or exchange value. They were not incipient money; instead, monetized commerce appears to have predated the economic organization of the Inca society. The article begins by tracing the emergence of coinage in
Alf Hornborg
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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
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Symmetry analysis in inflationary cosmology [PDF]
AIP Conference Proceedings, 2019 We approach the cosmological inflation thought symmetries of differential equations. We consider the general inflaton field in a homogeneous Friedmann--Lema\^ tre--Robertson--Walker spacetime and with the use of conformal transformations we are able to write the generic algebraic solution for the field equations.
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Novel Theorems on Spacetime Admitting Pseudo‐W2 Curvature Tensor
Journal of Mathematics, Volume 2026, Issue 1, 2026.This paper investigates spacetime manifolds admitting a pseudo‐W2 curvature tensor. We show that a pseudo‐W2 flat spacetime is an Einstein manifold and therefore has constant curvature. Moreover, when the manifold satisfies the Einstein field equations (EFE), with a cosmological constant, the associated energy–momentum tensor is covariantly constant ...
B. B. Chaturvedi +3 more
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