English
Related papers

Related papers: An Approximate $M_2$ Model for Radiative Transfer …

200 papers

We assert that the physics underlying the extraordinary light transmission (reflection) in nanostructured materials can be understood from rather general principles based on the formal scattering theory developed in quantum mechanics. The…

Computational Physics · Physics 2016-08-16 A. G. Borisov , F. J. García de Abajo , S. V. Shabanov

We present describe a new computer code that solves the radiative transfer problem on multi-resolution grids. If the cloud model is from an MHD simulation on a regular cartesian grid, criteria based for example on local density or velocity…

Astrophysics · Physics 2009-11-10 M. Juvela , P. Padoan

The radiative transfer equation (RTE) models the transport of light inside photonic scattering samples such as paint, foam and tissue. Analytic approximations to solve the RTE fail for samples with strong absorption and dominant anisotropic…

Optics · Physics 2022-03-24 Ozan Akdemir , Ad Lagendijk , Willem L. Vos

We study layered systems and heterostructures of s-wave superconductors by means of a suitable generalization of Dynamical Mean-Field Theory. In order to reduce the computational effort, we consider an embedding scheme in which a relatively…

Strongly Correlated Electrons · Physics 2016-06-22 Francesco Petocchi , Massimo Capone

Semi-Empirical Tight Binding (TB) is known to be a scalable and accurate atomistic representation for electron transport for realistically extended nano-scaled semiconductor devices that might contain millions of atoms. In this paper an…

Materials Science · Physics 2015-06-18 Ganesh Hegde , Michael Povolotskyi , Tillmann Kubis , Timothy Boykin , Gerhard Klimeck

The heat capacity anomaly at the transition to superconductivity of the layered superconductor MgB$_2$ is compared to first-principles calculations with the Coulomb repulsion, $\mu^\ast$, as the only parameter which is fixed to give the…

Superconductivity · Physics 2009-11-07 A. A. Golubov , J. Kortus , O. V. Dolgov , O. Jepsen , Y. Kong , O. K. Andersen , B. J. Gibson , K. Ahn , R. K. Kremer

We derive exact analytical formulas for the radiative heat transfer between parallel slabs separated by vacuum and subject to arbitrary temperature profiles. We show that, depending on the derivatives of the temperature at points close to…

Mesoscale and Nanoscale Physics · Physics 2016-11-30 Riccardo Messina , Weiliang Jin , Alejandro W. Rodriguez

We obtain exact rotating membrane solutions and explicit expressions for the conserved charges on a manifold with exactly known metric of G_2 holonomy in M-theory, with four dimensional N=1 field theory dual. After that, we investigate…

High Energy Physics - Theory · Physics 2009-11-11 P. Bozhilov

In this paper, we take a data-driven approach and apply machine learning to the moment closure problem for radiative transfer equation in slab geometry. Instead of learning the unclosed high order moment, we propose to directly learn the…

Numerical Analysis · Mathematics 2022-02-09 Juntao Huang , Yingda Cheng , Andrew J. Christlieb , Luke F. Roberts

A theory of light reflection and transmission by an optically thin nanocomposite slab which contains randomly distributed metal nanoparticles (NPs) is developed. The underlying model takes into account the reflection of light scattered by…

Optics · Physics 2021-04-13 V. G. Bordo

Relying on our theoretical approach for the superconducting critical state problem in 3D magnetic field configurations, we present an exhaustive analysis of the electrodynamic response for the so-called longitudinal transport problem in the…

Superconductivity · Physics 2015-05-30 H. S. Ruiz , A. Badía-Majós , C. López

To identify the contributions of the multiband nature and the anisotropy of a microscopic electronic structure to a macroscopic vortex lattice morphology, we develop a method based on the Eilenberger theory near Hc2 combined with the…

Superconductivity · Physics 2014-04-22 Tomoya Hirano , Kenta Takamori , Masanori Ichioka , Kazushige Machida

Rosseland equation is one of the most popular models of the conduction-radiation coupled heat transfer in the thermal protection system. The well-posedness, the corresponding mathematical theory and the Multi-scale analysis method for the…

Analysis of PDEs · Mathematics 2015-03-20 Zhang Qiao-fu

Non-radiative coupling between conductive coils is a candidate mechanism for wireless energy transfer applications. In this paper, we propose a power relay system based on a near-field metamaterial superlens, and present a thorough…

Classical Physics · Physics 2011-07-25 Yaroslav Urzhumov , David R. Smith

Two-dimensional fluid simulations of interchange turbulence for geometry and parameters relevant for the scrape-off layer of confined plasmas are presented. We observe bursty ejection of particles and heat from the bulk plasma in the form…

Plasma Physics · Physics 2009-11-10 Odd Erik Garcia , Volker Naulin , Anders H. Nielsen , Jens Juul Rasmussen

We apply an analytical approach for determining the near-field radiative heat transfer between a metallic nanosphere and a planar semi-infinite medium with some given surface structure. This approach is based on a perturbative expansion,…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Svend-Age Biehs , Oliver Huth , Felix Rüting

In trying to emulate the spatial position of wireless nodes for purpose of analysis, we rely on stochastic simulation. And, it is customary, for mobile systems, to consider a base-station radiation coverage by an ideal cell shape. For…

Information Theory · Computer Science 2013-06-06 Mouhamed Abdulla , Yousef R. Shayan

This article studies a fully implicit finite volume scheme for transient nonlinear heat transport equations coupled by nonlocal interface conditions modeling diffuse-gray radiation between the surfaces of (both open and closed) cavities.…

Numerical Analysis · Mathematics 2014-07-08 Peter Philip

Molecular Dynamics (MD) simulations are a powerful tool for studying matter at the atomic scale. However, to simulate solids, an initial atomic structure is crucial for the successful execution of MD simulations, but can be difficult to…

Computational Physics · Physics 2024-11-27 Lars Dammann , Richard Kohns , Patrick Huber , Robert H. Meißner

We theoretically investigate the transmission of electromagnetic radiation through a metal plate with a zero-$\epsilon$ metamaterial slit, where the permittivity tends towards zero over a given bandwidth. Our analytic results demonstrate…

Optics · Physics 2008-09-15 Klaus Halterman , Simin Feng
‹ Prev 1 4 5 6 7 8 10 Next ›