Results 61 to 70 of about 383,957 (288)

First principles homogenization of periodic metamaterials and application to wire media

Comptes Rendus. Physique, 2020
Here, we present an overview of a first principles homogenization theory of periodic metamaterials. It is shown that in a rather general context it is possible to formally introduce effective parameters that describe the time evolution of macroscopic ...
Lannebère, Sylvain, Morgado, Tiago A., Silveirinha, Mário G.   +2 more
doaj   +1 more source

Dissipative Van der Waals interaction between a small particle and a metal surface

, 2006
We use a general theory of the fluctuating electromagnetic field to calculate the friction force acting on a small neutral particle, e.g., a physisorbed molecule, or a nanoscale object with arbitrary dispersive and absorptive dielectric properties ...
A. A. Kyasov, A. Dayo, A. I. Volokitin, A. I. Volokitin, A. I. Volokitin, A. I. Volokitin, A. I. Volokitin, A. I. Volokitin, A. Majumdar, B. C. Stipe, B. Gotsmann, B. N. J. Persson, B. N. J. Persson, B. N. J. Persson, B. N. J. Persson, D. Polder, E. M. Lifshitz, E. T. Watts, G. V. Dedkov, I. Dorofeyev, I. Dorofeyev, J. B. Pendry, J. B. Pendry, M. L. Levin, P. Johansson, S. Tomassone, T. J. Gramila, T. J. Gramila, T. J. Gramila, T. J. Gramila, U. Hartmann, U. Hartmann   +31 more
core   +1 more source

Exciton‐Polaritons in Nanoscale Metal‐Organic Frameworks: A Platform for the Reversible Modulation of Strong Light‐Matter Coupling via the Chemical Environment

Advanced Functional Materials, EarlyView.
Strong exciton‐photon coupling is achieved by integrating porphyrin ligand‐based MOF nanoparticles in optical cavities, as evidenced by pronounced polariton branch anticrossing. The porous nature of the resonator enables precise, reversible tuning via vapor pressure, unlocking unprecedented chemical‐environment controlled dynamic polaritonic platforms ...
Beatriz de Sola‐Báez, Laura Caliò, Mauricio E. Calvo, Juan F. Galisteo‐López, Jesús Hernández‐Saz, Miriam Herrera‐Collado, Carolina Carrillo‐Carrión, Hernán Míguez   +7 more
wiley   +1 more source

Dynamics of the Chiral Magnetic Effect in a weak magnetic field

, 2012
We investigate the real-time dynamics of the chiral magnetic effect in quantum electrodynamics (QED) and quantum chromodynamics (QCD). We consider a field configuration of parallel (chromo)electric and (chromo)magnetic fields with a weak perpendicular ...
A. I. Nikishov, F. V. Bunkin, Harmen J. Warringa, M. Abramczyk, M. E. Peskin, N. B. Narozhnyi, N. B. Narozhnyi, V. I. Ritus, V. I. Ritus, V. P. Barashev, V. P. Barashev   +10 more
core   +1 more source

Imaging of Biphoton States: Fundamentals and Applications

Advanced Functional Materials, EarlyView.
Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley   +1 more source

Electrocatalytic Reduction of CO2 to Ethylene: Catalyst Design and Synchrotron‐Based Characterizations

Advanced Functional Materials, EarlyView.
This review evaluates strategies for electrochemical CO2 reduction to ethylene, focusing on copper‐based catalyst design and microenvironment modulation to achieve industrial‐grade performance. By leveraging operando synchrotron‐based characterizations, we provide a multiscale understanding of dynamic structural transformations and key reaction ...
Meng Zhang, Zuolong Chen, Yimin A. Wu
wiley   +1 more source

Theory of electromagnetic wave generation via a beam-plasma antenna [PDF]

AIP Conference Proceedings, 2016
In this work, we propose a theory describing generation of electromagnetic waves in a thin beam-plasma system with a characteristic transverse size comparable with the radiation wavelength. Such a theory can be useful for the description of the processes responsible for EM emission in beam-plasma experiments at the GOL-3 multi mirror trap.
E. P. Volchok, I. V. Timofeev, V. V. Annenkov   +2 more
openaire   +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

Emergent Abelian Gauge Fields from Noncommutative Gravity

Symmetry, Integrability and Geometry: Methods and Applications, 2010
We construct exact solutions to noncommutative gravity following the formulation of Chamseddine and show that they are in general accompanied by Abelian gauge fields which are first order in the noncommutative scale.
Allen Stern
doaj   +1 more source

Generation of large-scale magnetic fields from inflation in teleparallelism

, 2012
We explore the generation of large-scale magnetic fields from inflation in teleparallelism, in which the gravitational theory is described by the torsion scalar instead of the scalar curvature in general relativity.
Bamba, Kazuharu, Geng, Chao-Qiang, Luo, Ling-Wei   +2 more
core   +1 more source