Results 131 to 140 of about 416,864 (290)
3D SR‐μXCT analysis for lithology detection: Application to Ryugu sample A0159
Meteoritics &Planetary Science, Volume 60, Issue 11, Page 2623-2654, November 2025.Abstract Extraterrestrial breccia samples are formed through impact‐related processes that combine the fragments of distinct lithologies. As such, they are valuable indicators of the complex formation and evolution history of planetesimals in our solar system.
Léna Jossé +9 more
wiley +1 more source
BRANE INFLATION FROM MIRAGE COSMOLOGY
The Ninth Marcel Grossmann Meeting, 2002 15 pages, 2 figures, Invited Talk given at IX Marcel Grossmann Meeting, Rome, 2-8 July ...
openaire +2 more sources
Kaluza-Klein cosmological inflation
Nuclear Physics B, 1985 Abstract We discuss cosmological inflation resulting from slow rollover to equilibrium of the radius of the compact manifold in Kaluza-Klein theories. Reheating of the universe after this inflation, and the spectrum of density fluctions are also considered.
D. Bailin, A. Love, J. Stein-Schabes
openaire +1 more source
Energy Symmetry Breaking of Dirac and Weyl Fermions in Magnetized Spinning Conical Geometries
Advanced 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
Clockwork axions in cosmology. Is chromonatural inflation chrononatural?
Journal 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
Fortschritte 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
Non-singular Power-law and Assisted inflation in Loop Quantum Cosmology [PDF]
, 2012 We investigate the dynamics of single and multiple scalar fields with exponential potentials, leading to power-law and assisted inflation, in loop quantum cosmology.
Evan Ranken, Parampreet Singh
semanticscholar +1 more source
Initial conditions for hybrid inflation
, 2000 In hybrid inflation models, typically only a tiny fraction of possible initial conditions give rise to successful inflation, even if one assumes spatial homogeneity.
A. D. Linde +37 more
core +1 more source
Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.Abstract The Planetary Instrument for X‐ray Lithochemistry (PIXL) onboard the Perseverance rover has characterized the composition of Martian regolith at a scale of hundreds of microns using micro‐focus X‐ray fluorescence spectroscopy. PIXL data reveal a diverse population of regolith grains with distinct spectral, chemical, and crystallographic ...
Andrew O. Shumway +23 more
wiley +1 more source
Scaling solutions for dilaton quantum gravity
Physics Letters B, 2017 Scaling solutions for the effective action in dilaton quantum gravity are investigated within the functional renormalization group approach. We find numerical solutions that connect ultraviolet and infrared fixed points as the ratio between scalar field ...
T. Henz, J.M. Pawlowski, C. Wetterich
doaj +1 more source