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Charged particle motion around non-singular black holes in conformal gravity in the presence of external magnetic field

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We consider electromagnetic fields and charged particle dynamics around non-singular black holes in conformal gravity immersed in an external, asymptotically uniform magnetic field.
Bakhtiyor Narzilloev   +3 more
doaj   +3 more sources

Holography Beyond AdS

open access: yesNuclear Physics B, 2018
We continue our study of string theory in a background that interpolates between AdS3 in the infrared and a linear dilaton spacetime R1,1×Rϕ in the UV.
Meseret Asrat   +3 more
doaj   +3 more sources

Implications of the Conformal Constraint on Sound Speed on the Radius of PSR J0952–0607 within Rastall Gravity

open access: yesThe Astrophysical Journal, 2023
It has been shown that the nonminimal coupling between geometry and matter can provide models for massive compact stars that are consistent with the conformal bound on the sound speed, $0\leqslant {c}_{s}^{2}\leqslant {c}^{2}/3$ , where the core density ...
Waleed El Hanafy, Adel Awad
doaj   +3 more sources

ON THE P-HARMONIC RADII OF CIRCULAR SECTORS

open access: yesПроблемы анализа, 2021
It is proved that the property of logarithmic concavity of the conformal radius of a circular sector (considered as a function of the angle) extends to the domains of Euclidean space.
A. S. Afanaseva-Grigoreva   +1 more
doaj   +1 more source

Variation of the conformal radius [PDF]

open access: yesJournal d'Analyse Mathématique, 2004
The aim of this paper is the change of the conformal radius \(r(U)\) of a simply connected domain \(U \ni z_0\) versus the subdomain \(U_\epsilon\) which contains the points of distance \(\epsilon > 0 \) to \(\partial U\), where \(\epsilon\) is smaller than the distance from \(z_0\) to the boundary \(\partial U\).
Rohde, Steffen, Zinsmeister, Michel
openaire   +2 more sources

Half-plane capacity and conformal radius [PDF]

open access: yesProceedings of the American Mathematical Society, 2013
In this note, we show that the half-plane capacity of a subset of the upper half-plane is comparable to a simple geometric quantity, namely the euclidean area of the hyperbolic neighborhood of radius one of this set. This is achieved by proving a similar estimate for the conformal radius of a subdomain of the unit disc and by establishing a simple ...
Rohde, Steffen, Wong, Carto
openaire   +3 more sources

Extremal distance and conformal radius of a CLE4 loop

open access: yesThe Annals of Probability, 2022
Consider CLE$_4$ in the unit disk and let $\ell$ be the loop of the CLE$_4$ surrounding the origin. Schramm, Sheffield and Wilson determined the law of the conformal radius seen from the origin of the domain surrounded by $\ell$. We complement their result by determining the law of the extremal distance between $\ell$ and the boundary of the unit disk.
Aru, Juhan   +2 more
openaire   +3 more sources

BMS symmetry via AdS/CFT

open access: yesJournal of High Energy Physics, 2021
With a view to understanding extended-BMS symmetries in the framework of the AdS 4 /CFT 3 correspondence, asymptotically AdS geometries are constructed with null impulsive shockwaves involving a discontinuity in superrotation parameters.
David A. Lowe, David M. Ramirez
doaj   +1 more source

Entanglement entropy in conformal quantum mechanics

open access: yesJournal of High Energy Physics, 2023
We consider sets of states in conformal quantum mechanics associated to generators of time evolution whose orbits cover different regions of the time domain.
Michele Arzano   +2 more
doaj   +1 more source

A wideband cylindrical conformal microstrip mimo antenna array

open access: yesElectronics Letters, 2023
In this paper, a wideband cylindrical conformal microstrip antenna array employing a proximity‐coupled feeding mechanism with a cavity‐backed configuration is designed and fabricated.
Song‐Song Qian   +5 more
doaj   +1 more source

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