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Elastic wave propagation is studied in a heterogeneous 2-D medium consisting of an elastic matrix containing randomly distributed circular elastic inclusions. The aim of this study is to determine the effective wavenumbers when the incident…

经典物理 · 物理学 2016-06-29 Mathieu Chekroun , Loïc Le Marrec , Bruno Lombard , Joël Piraux

We estimate the scattering matrix of an arbitrarily complex linear, passive, time-invariant system with $N$ monomodal lumped ports by inputting and outputting waves only via a fixed set of $N_\mathrm{A}<N$ ports while terminating the…

应用物理 · 物理学 2025-02-17 Philipp del Hougne

We demonstrate the validity of the complex scaling method for realistic strong, non-local, nucleon- nucleon interactions by comparing the deuteron bound state and nucleon-nucleon scattering phase shifts with results from other…

核理论 · 物理学 2015-03-05 G. Papadimitriou , J. P. Vary

As liquid xenon TPCs increase in target mass while pursuing the direct detection of WIMP dark matter, the technical challenges arising due to their size call for new solutions and open the discussion on alternative detector concepts.…

仪器与探测器 · 物理学 2022-04-14 Fabian Kuger , Julia Dierle , Horst Fischer , Marc Schumann , Francesco Toschi

We show that the use of wavelet bases for solving the momentum-space scattering integral equation leads to sparse matrices which can simplify the solution. Wavelet bases are applied to calculate the K-matrix for nucleon-nucleon scattering…

核理论 · 物理学 2009-11-07 B. M. Kessler , G. L. Payne , W. N. Polyzou

We give an overview of the worldline numerics technique, and discuss the parallel CUDA implementation of a worldline numerics algorithm. In the worldline numerics technique, we wish to generate an ensemble of representative closed-loop…

高能物理 - 理论 · 物理学 2014-07-29 Dan Mazur , Jeremy S. Heyl

A semiclassical distorted wave (SCDW) model with Wigner transform of one-body density matrix is presented for multistep direct $(p,p^{\prime}x)$ reactions to the continuum. The model uses Wigner distribution functions obtained in methods…

核理论 · 物理学 2007-05-23 M. K. Gaidarov , Y. Watanabe , K. Ogata , M. Kohno , M. Kawai , A. N. Antonov

We present an exploratory work on integrating lattice-QCD results with experimental data for elastic scattering. Within the framework of generalized parton distributions (GPDs), this approach allows for the extraction of detailed…

高能物理 - 唯象学 · 物理学 2024-09-27 Krzysztof Cichy , Martha Constantinou , Paweł Sznajder , Jakub Wagner

Accurate treatment of the long-range electron correlation energy, including van der Waals (vdW) or dispersion interactions, is essential for describing the structure, dynamics, and function of a wide variety of systems. Among the most…

The effective interaction between a nucleon and a nucleus is one of the most important ingredients for reaction theories. Theoretical formulations were introduced early by Feshbach and Watson, and efforts of deriving and computing those…

核理论 · 物理学 2023-06-23 R. B. Baker , M. Burrows , Ch. Elster , K. D. Launey , P. Maris , G. Popa , S. P. Weppner

Study of scattering process in the nonlocal interaction framework leads to an integro-differential equation. The purpose of the present work is to develop an efficient approach to solve this integro-differential equation with high degree of…

核理论 · 物理学 2018-08-09 N. J. Upadhyay , A. Bhagwat

General requirements for radar digital signal processing are ionospheric distortion and Doppler dispersion correction, which has historically required radar-specific hardware to implement in real time. Although analog solutions are…

信号处理 · 电气工程与系统科学 2025-09-30 Daniel J. Vickers , A. H. Mack , Idahosa A. Osaretin

We introduce a systematic approach to characterize the most general non-relativistic WIMP-nucleus interaction allowed by Galilean invariance for a WIMP of arbitrary spin $j_\chi$ in the approximation of one-nucleon currents. Five nucleon…

高能物理 - 唯象学 · 物理学 2021-09-22 Paolo Gondolo , Sunghyun Kang , Stefano Scopel , Gaurav Tomar

In this paper, a new methodology is proposed that allows for the low-complexity development of neural network (NN) based equalizers for the mitigation of impairments in high-speed coherent optical transmission systems. In this work, we…

With a view toward addressing the explosive growth in the computational demands of nuclear structure and reactions modeling, we develop a novel quantum algorithm for neutron-nucleus simulations with general potentials, which provides…

量子物理 · 物理学 2026-03-17 Soorya Rethinasamy , Ethan Guo , Alexander Wei , Mark M. Wilde , Kristina D. Launey

Efficient exploitation of exascale architectures requires rethinking of the numerical algorithms used in many large-scale applications. These architectures favor algorithms that expose ultra fine-grain parallelism and maximize the ratio of…

Modeling the localized intensive deformation in a damaged solid requires highly refined discretization for accurate prediction, which significantly increases the computational cost. Although adaptive model refinement can be employed for…

计算工程、金融与科学 · 计算机科学 2022-05-18 Jonghyuk Baek , Jiun-Shyan Chen , Kristen Susuki

In this paper, we propose a simple hybrid WENO scheme to increase computational efficiency and decrease numerical dissipation. Based on the characteristic-wise approach, the scheme switches the numerical flux of each characteristic…

流体动力学 · 物理学 2018-02-13 X. Y. Hu , B. Wang , N. A. Adams

With their high energy efficiency, processing-in-memory (PIM) arrays are increasingly used for convolutional neural network (CNN) inference. In PIM-based CNN inference, the computational latency and energy are dependent on how the CNN…

机器学习 · 计算机科学 2021-12-22 Johnny Rhe , Sungmin Moon , Jong Hwan Ko

Total charge and energy evaluations for the electron beams generated in the laser wakefield acceleration (LWFA) is the primary step in the determination of the required target and laser parameters. Particle-in-cell (PIC) simulations is an…

加速器物理 · 物理学 2022-01-03 N. Pathak , A. Zhidkov , T. Hosokai