Results 61 to 70 of about 3,483 (284)

General light-cone gauge approach to conformal fields and applications to scalar and vector fields

open access: yes, 2022
Totally symmetric arbitrary spin conformal fields propagating in the flat space of even dimension greater than or equal to four are studied. For such fields, we develop a general ordinary-derivative light-cone gauge formalism and obtain restrictions ...
Metsaev, R. R.
core   +1 more source

Conformal vector fields of static spherically symmetric space-times in f (R, G) gravity

open access: yes, 2020
Assuming the most general form of static spherically symmetric space-times, we search for the conformal vector fields in f(R, G) gravity by means of algebraic and direct integration approaches.
Shabbir, Ghulam   +4 more
core   +1 more source

Lightlike reduction of the M5 brane

open access: yesJournal of High Energy Physics, 2023
We obtain a Lagrangian for a lightlike dimensional reduction of the nonabelian M5 brane theory in six dimension. We assume that the six-manifold has at least one conformal Killing spinor and two commuting lightlike Killing vector fields, and we perform ...
Andreas Gustavsson
doaj   +1 more source

Conformal vector fields and Yamabe solitons [PDF]

open access: yesInternational Journal of Geometric Methods in Modern Physics, 2019
In this paper, we use less topological restrictions and more geometric and analytic conditions to obtain some sufficient conditions on Yamabe solitons such that their metrics are Yamabe metrics, that is, metrics of constant scalar curvature. More precisely, we use properties of conformal vector fields to find several sufficient conditions on the ...
Nasser Bin Turki   +2 more
openaire   +3 more sources

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner   +14 more
wiley   +1 more source

Almost Conformal Vector Fields on a Riemannian Manifold

open access: yesMathematics
We introduce the notion of an almost conformal vector field, which generalizes conformal vector fields and recently introduced m-modified conformal vector fields on a Riemannian manifold.
Sharief Deshmukh, Hana Al-Sodais
doaj   +1 more source

de Sitter symmetries and inflationary scalar-vector models

open access: yesUniversitas Scientiarum, 2016
In this paper, we study the correspondence between a field theory in de Sitter space in D-dimensions and a dual conformal field theory in a euclidean space in (D − 1)-dimensions.
Juan P. Beltrán Almeida   +1 more
doaj   +1 more source

Conformal Vector Fields on LCP Manifolds

open access: yes
We show that conformal vector fields on compact locally conformally product manifolds are orthogonal to the flat distribution and Killing with respect to the Gauduchon metric.
Flamencourt, Brice, Moroianu, Andrei
openaire   +2 more sources

Machine Learning‐Assisted Inverse Design of Soft and Multifunctional Hybrid Liquid Metal Composites

open access: yesAdvanced Functional Materials, EarlyView.
A machine learning framework is presented for inverse design of synthesizable multifunctional composites containing both liquid metal and solid inclusions. By integrating physics‐based modeling, data‐driven prediction, and Bayesian optimization, the approach enables intelligent design of experiments to identify optimal compositions and realize these ...
Lijun Zhou   +5 more
wiley   +1 more source

Atomic Layer Deposition Processes: Versatile Platforms for Engineering ZnO‐Chitosan Biointerfaces

open access: yesAdvanced Healthcare Materials, EarlyView.
Vapour phase metalation (VPM), multiplied pulsed vapour phase infiltration (MPI), and O2 plasma‑enhanced atomic layer deposition (PEALD) tailor Zn–chitosan (Zn‑CS) films. PEALD improves wettability and biocompatibility. MPI enhances semiconductor behavior. Antiseptic selectivity: VPM → E. coli; MPI → H. pylori.
Mabel Moreno   +17 more
wiley   +1 more source

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