Results 71 to 80 of about 111,827 (288)

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

Advanced 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, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Termination of Multifractal Behaviour for Critical Disordered Dirac Fermions

, 1997
We consider Dirac fermions interacting with a disordered non-Abelian vector potential. The exact solution is obtained through a special type of conformal field theory including logarithmic correlators, without resorting to the replica or supersymmetry ...
A. A. Belavin, A. A. Nersesyan, A. A. Nersesyan, A. M. Tsvelik, A. W. W. Ludwig, B. A. Muzykantskii, B. Huckestein, B. L. Altshuler, C. Chamon, C. Mudry, F. Wegner, H. Aoki, H. E. Castillo, I. E. Smolyarenko, I. I. Kogan, J. J. M. Verbaarschot, J.-S. Caux, J.-S. Caux, J.-S. Caux, K. B. Efetov, M. Janssen, N. Taniguchi, V. Fal'ko, V. G. Knizhnik, V. Gurarie, Vl. S. Dotsenko, W. Pook   +26 more
core   +1 more source

Artifact‐Minimizing Ultrathin Transparent Electrodes Fabricated via iCVD for In Vivo Optogenetic Stimulation and Neural Signal Monitoring of Primary Visual Cortex

Advanced Functional Materials, EarlyView.
We present ultrathin flexible transparent electrodes through iCVD‐enabled molecular control of 10 nm gold films on poly(dimethylaminomethylstyrene). In vivo validation demonstrated photoelectric artifact reduction vs. opaque electrodes and preservation of natural neural dynamics.
Tae Jin Mun, Minju Kim, Chaesung Kim, Yunyoung Choi, In‐Yeop Baek, Younghak Cho, Gyeongyong Lee, Yerim Jang, Min‐Ho Nam, Wonryung Lee, Maesoon Im, Hyejeong Seong   +11 more
wiley   +1 more source

Conformal quasi-hemi-slant $\xi^{\perp}$-Riemannian submersions from Sasakian manifolds [PDF]

Mathematica Bohemica
We introduce some geometric properties of a horizontally conformal quasi-hemi-slant Riemannian submersion from a Sasakian manifold, normal to the characteristic vector field, supported by an example.
Fortuné Massamba, Pontsho Moile
doaj   +1 more source

Conformal Anomalies in Hydrodynamics

, 2013
We study the effect of conformal anomalies on the hydrodynamic description of conformal field theories in even spacetime dimensions. We consider equilibrium curved backgrounds characterized by a time-like Killing vector and construct a local low energy ...
Eling, Christopher, Oz, Yaron, Theisen, Stefan, Yankielowicz, Shimon   +3 more
core   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Conformal Yang-Mills field in (A)dS space

Journal of High Energy Physics
Ordinary-derivative (second-derivative) Lagrangian formulation of classical conformal Yang-Mills field in the (A)dS space of six, eight, and ten dimensions is developed.
R. R. Metsaev
doaj   +1 more source

Projective Vector Fields on Semi-Riemannian Manifolds

Mathematics
This paper explores the properties of projective vector fields on semi-Riemannian manifolds. The main result establishes that if a projective vector field P on such a manifold is also a conformal vector field with potential function ψ and the vector ...
Norah Alshehri, Mohammed Guediri
doaj   +1 more source

On the non-Gaussian correlation of the primordial curvature perturbation with vector fields

, 2013
We compute the three-point cross-correlation function of the primordial curvature perturbation generated during inflation with two powers of a vector field in a model where conformal invariance is broken by a direct coupling of the vector field with the ...
Jain, Rajeev Kumar, Sloth, Martin S.
core   +1 more source

Essential points of conformal vector fields

Journal of Geometry and Physics, 2011
For a conformal vector field $ $ on a Riemannian manifold, we say that a point is essential if there is no local metric in the conformal class for which $ $ is Killing. We show that the only essential points are isolated zeros of $ $. As an application, we show that every connected component of the zero set of $ $ is totally umbilical.
Belgun, Florin, Moroianu, Andrei, Ornea, Liviu   +2 more
openaire   +2 more sources