Results 111 to 120 of about 28,626 (211)

Mass-deformed M2 branes in Stenzel space

open access: yesJournal of High Energy Physics, 2017
We obtain finite-temperature M2 black branes in 11-dimensional supergravity, in a G 4-flux background whose self-dual part approaches a solution of Cvetič, Gibbons, Lü, and Pope, based upon Stenzel’s family of Ricci-flat Kähler deformed cones.
Óscar J. C. Dias   +3 more
doaj   +1 more source

Microwave Sensing and Imaging Technology in Food Applications: A Comprehensive Review

open access: yesComprehensive Reviews in Food Science and Food Safety, Volume 24, Issue 4, July 2025.
ABSTRACT Microwave sensing (MWS) and imaging (MWI) technologies have gained significant attention as non‐destructive methods for assessing food quality, ensuring safety, and verifying authenticity. This review provides a comprehensive evaluation of MW‐based systems in food applications, integrating both theoretical foundations and practical ...
Aysenur Betul Bilgin, Pervin Basaran
wiley   +1 more source

On LP-Kenmotsu Manifold with Regard to Generalized Symmetric Metric Connection of Type (α, β)

open access: yesMathematics
In the current article, we examine Lorentzian para-Kenmotsu (shortly, LP-Kenmotsu) manifolds with regard to the generalized symmetric metric connection ∇G of type (α,β).
Doddabhadrappla Gowda Prakasha   +3 more
doaj   +1 more source

An attempt to geometrize electromagnetism

open access: yesOpen Physics, 2018
This study investigates the curved worldline of a charged particle accelerated by an electromagnetic field in flat spacetime. A new metric, which dependes on the charge-to-mass ratio and electromagnetic potential, is proposed to describe the curve ...
Huang XiuLin, Xu Yan, Liu ChengZhi
doaj   +1 more source

Unitarization from geometry

open access: yesJournal of High Energy Physics, 2019
We study the perturbative unitarity of scattering amplitudes in general dimensional reductions of Yang-Mills theories and general relativity on closed internal manifolds.
James Bonifacio, Kurt Hinterbichler
doaj   +1 more source

Kaluza-Klein Multidimensional Models with Ricci-Flat Internal Spaces: The Absence of the KK Particles

open access: yesAdvances in High Energy Physics, 2013
We consider a multidimensional Kaluza-Klein (KK) model with a Ricci-flat internal space, for example, a Calabi-Yau manifold. We perturb this background metrics by a system of gravitating masses, for example, astrophysical objects such as our Sun.
Alexey Chopovsky   +2 more
doaj   +1 more source

Learning group invariant Calabi–Yau metrics by fundamental domain projections

open access: yesMachine Learning: Science and Technology
We present new invariant machine learning models that approximate the Ricci-flat metric on Calabi–Yau (CY) manifolds with discrete symmetries. We accomplish this by combining state of the art models for predicting such metrics, based on the so-called φ ...
Yacoub Hendi   +2 more
doaj   +1 more source

Complete Ricci-flat K�hler manifolds of infinite topological type

open access: yesCommunications in Mathematical Physics, 1989
We display an infinite dimensional family of complete Ricci-flat Kahler manifolds of complex dimension 2, for which the second homology is infinitely generated. These are obtained from the Gibbons-Hawking Ansatz [2] by using infinitely many, sparsely distributed centers.
Claude LeBrun   +3 more
openaire   +3 more sources

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