Results 91 to 100 of about 180,985 (262)

Energy Symmetry Breaking of Dirac and Weyl Fermions in Magnetized Spinning Conical Geometries

open access: yesAdvanced Theory and Simulations, Volume 8, Issue 10, October 2025.
Exact solutions for relativistic fermions in magnetized, spinning conical geometries reveal defect‐induced symmetry breaking between fermion and antifermion energies. Energy levels depend on the magnetic field, background geometry, and fractionalized spin. When the defect's spin dominates, quantum effects diminish.
Abdullah Guvendi, Omar Mustafa
wiley   +1 more source

Supersymmetric inflationary cosmology

open access: yesPhysics Letters B, 1984
Abstract We discuss a supersymmetric inflationary cosmological scenario in which inflation takes place after GUT breaking but before SUSY breaking. The framework is within N = 1 supergravity with the inflation and SUSY breaking sectors hidden from one another.
Physics Department, University of Florida, Gainesville, FL 32611, USA ( host institution )   +3 more
openaire   +2 more sources

Tsallisian Gravity and Cosmology

open access: yesAdvances in High Energy Physics, 2020
In this paper, we adopt the Verlinde hypothesis on the origin of gravity as the consequence of the tendency of systems to increase their entropy and employ the Tsallis statistics.
Kavoos Abbasi, Shirvan Gharaati
doaj   +1 more source

The Fundamental Roles of the de Sitter Vacuum

open access: yesUniverse, 2020
We overview the fundamental roles of the de Sitter vacuum in cosmology where it is responsible for powering the early inflationary stage(s) and the present accelerated expansion, in black hole physics where it provides the existence of a wide class of ...
Irina Dymnikova
doaj   +1 more source

Unification of Conformal and Fuzzy Gravities With Internal Interactions Resulting in SO(10) and a Possible Probe Through Stochastic Gravitational Wave Background

open access: yesFortschritte der Physik, Volume 73, Issue 9-10, October 2025.
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

Inflationary cosmology and thermodynamics [PDF]

open access: yesClassical and Quantum Gravity, 1998
We present a simple and thermodynamically consistent cosmology with a phenomenological model of quantum creation of radiation due to vacuum decay. Thermodynamics and Einstein's equations lead to an equation in which $H$ is determined by the particle number $N$.
Gunzig, Edgard   +2 more
openaire   +3 more sources

Strain Localization Along Aphrodite Terra's Chasmata System, Venus: The Role of Frictional Melting and Fault‐Melt Interaction

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract We analyze large‐scale shear zones that are exposed along the equatorial chasmata of Eastern Aphrodite Terra to understand the role of strain localization in the deformation of the Venusian crust. These shear zones dip at low angles opposite to the slopes, forming terraces that expose portions of the shear planes.
Thomas Kenkmann   +2 more
wiley   +1 more source

Higher derivative D-term inflation in new-minimal supergravity

open access: yesPhysics 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
doaj   +1 more source

Against interpretive exclusivism* Contre l'exclusivisme interprétatif

open access: yesJournal of the Royal Anthropological Institute, Volume 31, Issue 3, Page 645-662, September 2025.
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

Signals from Fermionic inflationary cosmology with Yukawa interaction

open access: yesPhysics Letters B
We 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
doaj   +1 more source

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