Results 91 to 100 of about 2,562 (178)

Probing the Black Hole Interior with Holographic Entanglement Entropy and the Role of AdS/BCFT Correspondence

open access: yesFortschritte der Physik, Volume 73, Issue 9-10, October 2025.
The present work, entitled: Probing the Black Hole Interior with Holographic Entanglement Entropy and the Role of AdS/BCFT Correspondence by Fabiano F. Santos, is presented as an investigation of the black hole interior using the Holographic Entanglement Entropy (HEE) and AdS/BCFT Correspondence.
Fabiano F. Santos
wiley   +1 more source

New Fit for the O+‐O Collision Frequency Including Fine Structure Effects

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract A new fit is presented for the oxygen ion‐neutral collision frequency νin ${\nu }_{\text{in}}$. The fit explicitly depends on the neutral temperature Tn ${T}_{\mathrm{n}}$, which characterizes the thermal distribution of fine structure levels of O(3PJ,J=0 ${P}_{J},\,J=0$,1,2), and the reduced temperature Tr=12Tn+Ti ${T}_{\mathrm{r}}=\frac{1}{2}
A. P. Hickman
wiley   +1 more source

Unitary evolution and cosmic acceleration in Loop Quantum Cosmology

open access: yesPhysics Letters B
Loop quantum cosmology was shown to interpolate between de Sitter and FLRW Universe phases through a bounce by including Euclidean and Lorentzian terms of the Hamiltonian constraint with weight one -that corresponding to classical General Relativity ...
Omar Gallegos   +2 more
doaj   +1 more source

Ultraviolet Photooxidation of Carbonate‐Bearing Aqueous Ferrous Iron Within Open and Closed Experimental Systems—Implications for Sunlit Surface Water Bodies on Early Mars

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract Ultraviolet (UV) photooxidation has been considered a viable pathway to oxidize aqueous ferrous iron expected to have been present in early Martian surface waters. This reaction has been proposed to have created iron mineral deposits in Meridiani Planum as well as Gale Crater and would have affected chemical conditions such as pH and dissolved
V. B. Rivera Banuchi, J. A. Hurowitz
wiley   +1 more source

Non‐contrastive transcendence as gift and challenge to science and religion

open access: yesModern Theology, Volume 41, Issue 4, Page 613-624, October 2025.
Abstract This article suggests that the nature of transcendence represents a promising topic for future engagement between revision‐minded theologians in the field of science and religion and tradition‐oriented ones. It does so by drawing on Kathryn Tanner's account of non‐contrastive transcendence within the history of Christian theology to illuminate
Peter N. Jordan
wiley   +1 more source

Matematyka i kosmologia

open access: yesZagadnienia Filozoficzne w Nauce, 2012
The mathematical and cosmological works of a group associated with the Copernicus Center for Interdisciplinary Studies in Cracow are summarized. The group consists mainly of M. Heller, L. Pysiak, W. Sasin, Z. Odrzygóźdź and J. Gruszczak.
Michał Heller
doaj  

A short introduction to cosmology and its current status

open access: yesSciPost Physics Lecture Notes
The current cosmological model, known as the $\Lambda$-Cold Dark Matter model (or $\Lambda$CDM for short) is one of the most astonishing accomplishments of contemporary theoretical physics.
Pedro G. Ferreira, Alexander Roskill
doaj   +1 more source

Darkness without dark matter and energy – generalized unimodular gravity

open access: yesPhysics Letters B, 2017
We suggest a Lorentz non-invariant generalization of the unimodular gravity theory, which is classically equivalent to general relativity with a locally inert (devoid of local degrees of freedom) perfect fluid having an equation of state with a constant ...
A.O. Barvinsky, A.Yu. Kamenshchik
doaj   +1 more source

Cosmic Inflation, Quantum Information and the Pioneering Role of John S Bell in Cosmology

open access: yesUniverse, 2019
According to the theory of cosmic inflation, the large scale structures observed in our Universe (galaxies, clusters of galaxies, Cosmic Background Microwave—CMB—anisotropy…) are of quantum mechanical origin. They are nothing but vacuum
Jérôme Martin
doaj   +1 more source

Brane-World Gravity

open access: yesLiving Reviews in Relativity, 2010
The observable universe could be a 1+3-surface (the “brane”) embedded in a 1+3+d-dimensional spacetime (the “bulk”), with Standard Model particles and fields trapped on the brane while gravity is free to access the bulk.
Roy Maartens, Kazuya Koyama
doaj  

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