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We consider an anisotropic search for the stochastic gravitational-wave (GW) background by decomposing the gravitational-wave sky into its spherical harmonics components. Previous analyses have used the diffraction limit to define the…

天体物理仪器与方法 · 物理学 2022-07-20 Erik Floden , Vuk Mandic , Andrew Matas , Leo Tsukada

We propose a new approach to model ground penetrating radar signals that propagate through a homogeneous and isotropic medium, and are scattered at thin planar fractures of arbitrary dip, azimuth, thickness and material filling. We use…

地球物理 · 物理学 2017-01-06 A. Shakas , N. Linde

We propose a numerical method for the solution of electromagnetic problems on axisymmetric domains, based on a combination of a spectral Fourier approximation in the azimuthal direction with an IsoGeometric Analysis (IGA) approach in the…

数值分析 · 数学 2020-07-15 Abele Simona , Luca Bonaventura , Carlo de Falco , Sebastian Schöps

Structure and coordinate dependence of the reflected wave, as well as boundary conditions for quasi-particles of graphene and the two dimensional electron gas in sheets with abrupt lattice edges are obtained and analyzed by the Green's…

介观与纳米尺度物理 · 物理学 2019-01-30 A. M. Kadigrobov

The plane wave scattering and absorption by finite and infinite gratings of free-space standing infinitely long graphene strips are studied in the THz range. A novel numerical approach, based on graphene surface impedance, hyper-singular…

介观与纳米尺度物理 · 物理学 2013-10-02 Olga V. Shapoval , Juan Sebastian Gomez-Diaz , Julien Perruisseau-Carrier , Juan R. Mosig , Alexander I. Nosich

We use the framework of $\textit{fixed-point BCFT tensor networks}$ to present a microscopic CFT derivation of the correspondence between reflected entropy (RE) and entanglement wedge cross section (EW) in AdS$_3$/CFT$_2$, for both…

高能物理 - 理论 · 物理学 2026-02-17 Ning Bao , Jinwei Chu , Yikun Jiang , Jacob March

Accurately predicting nonlinear transient thermal fields in two-dimensional domains is a significant challenge in various engineering fields, where conventional analytical and numerical methods struggle to balance physical fidelity with…

计算物理 · 物理学 2025-04-07 Ze Tao , Fujun Liu , Jinhua Li , Guibo Chen

In this paper, two formulations for the computation of the dyadic Green's functions of Maxwell's equations in layered media are presented in details. The first formulation derived using TE/TM decomposition is well-known and intensively used…

数学物理 · 物理学 2026-04-07 Heng Yuan , Wenzhong Zhang , Bo Wang

We investigate the linear and nonlinear optical responses of dilute anisotropic networks using the Green's-function formalism (GFF)[Gu Y et al. 1999 Phys. Rev. B 59 12847]. For the different applied fields, numerical calculations indicate…

软凝聚态物质 · 物理学 2007-05-23 Y. Gu , K. W. Yu

A general technique to analyze the classical interaction between ideal topological insulators, and electromagnetic sources and fields, has been previously elaborated. Nevertheless it is not immediately applicable in the laboratory as it…

强关联电子 · 物理学 2016-10-26 Alberto Martín-Ruiz , Mauro Cambiaso , Luis F. Urrutia

The analysis of contours of scalar fields plays an important role in visualization. For example the contour tree and contour statistics can be used as a means for interaction and filtering or as signatures. In the context of tensor field…

图形学 · 计算机科学 2019-12-03 Talha Bin Masood , Ingrid Hotz

The surface plasmonic waves excited by a vertical or horizontal oriented Hertzian dipole above anisotropic and spatially dispersive two-dimensional surfaces of infinite extent embedded in planarly layered uniaxial media is investigated…

计算物理 · 物理学 2023-06-14 Minyu Gu , Krzysztof A. Michalski

The geometry of a Si$_3$N$_4$ lamellar grating was investigated experimentally with reference-free grazing-incidence X-ray fluorescence analysis. While simple layered systems are usually treated with the matrix formalism to determine the…

This work presents spectral, mesh-free, Green's theorem-based numerical quadrature schemes for integrating functions over planar regions bounded by rational parametric curves. Our algorithm proceeds in two steps: (1) We first find…

数值分析 · 数学 2020-09-16 David Gunderman , Kenneth Weiss , John A. Evans

This article aims to propose a novel analytical model for anisotropic multi-layer elliptical structures incorporating graphene layers. The multi-layer structure is formed of various magnetic materials. An external magnetic bias has been…

光学 · 物理学 2021-03-10 Mohammad Bagher Heydari , Mohammad Hashem Vadjed Samiei

We present a new approach to three-dimensional electromagnetic scattering problems via fast isogeometric boundary element methods. Starting with an investigation of the theoretical setting around the electric field integral equation within…

数值分析 · 数学 2019-06-28 Jürgen Dölz , Stefan Kurz , Sebastian Schöps , Felix Wolf

The spectral expansion of the Green's tensor for a planar multilayered structure allows us to semi analytically obtain the angular spectrum representation of the field scattered by an arbitrary dielectric perturbation present in the…

光学 · 物理学 2013-05-08 Ivan Fernandez-Corbaton , Nora Tischler , Gabriel Molina-Terriza

In this paper, we build on the work of [T. Hughes, G. Sangalli, VARIATIONAL MULTISCALE ANALYSIS: THE FINE-SCALE GREENS' FUNCTION, PROJECTION, OPTIMIZATION, LOCALIZATION, AND STABILIZED METHODS, SIAM Journal of Numerical Analysis, 45(2),…

数值分析 · 数学 2024-02-20 Suyash Shrestha , Joey Dekker , Marc Gerritsma , Steven Hulshoff , Ido Akkerman

Genetic Algorithm (GA) -- motivated by natural evolution -- is a robust method to estimate the global optimal solutions of problems involving multiple objective functions. In this article, for the first time, we apply GA to reconstruct the…

宇宙学与河外天体物理 · 物理学 2022-03-29 Parth Nayak , Rajib Saha

An adaptive modified weak Galerkin method (AmWG) for an elliptic problem is studied in this paper, in addition to its convergence and optimality. The modified weak Galerkin bilinear form is simplified without the need of the skeletal…

数值分析 · 数学 2023-05-11 Yingying Xie , Shuhao Cao , Long Chen , Liuqiang Zhong