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The interplay of quantum and classical simulation and the delicate divide between them is in the focus of massively parallelized tensor network state (TNS) algorithms designed for high performance computing (HPC). In this contribution, we…

量子物理 · 物理学 2023-05-10 Andor Menczer , Örs Legeza

Machine learning potentials have achieved great success in accelerating atomistic simulations. Many of them relying on atom-centered local descriptors are natural for parallelization. More recent message passing neural network (MPNN) models…

化学物理 · 物理学 2025-06-10 Junfan Xia , Bin Jiang

We discuss the product of $M$ rectangular random matrices with independent Gaussian entries, which have several applications including wireless telecommunication and econophysics. For complex matrices an explicit expression for the joint…

数学物理 · 物理学 2013-11-13 Gernot Akemann , Jesper R. Ipsen , Mario Kieburg

The presented work is part of a larger research program dealing with developing tools for coupling biogeochemical models in contaminated landscapes. The specific objective of this article is to provide the researchers a tool to build…

数学软件 · 计算机科学 2020-09-03 Stelian Ion , Dorin Marinescu , Stefan-Gicu Cruceanu , Virgil Iordache

A new large-scale parallel multiconfigurational self-consistent field (MCSCF) implementation in the open-source NWChem computational chemistry code is presented. The generalized active space (GAS) approach is used to partition large…

化学物理 · 物理学 2026-01-06 Konstantinos D. Vogiatzis , Dongxia Ma , Jeppe Olsen , Laura Gagliardi , Wibe de Jong

We combine matrix-product state (MPS) and Mean-Field (MF) methods to model the real-time evolution of a three-dimensional (3D) extended Hubbard system formed from one-dimensional (1D) chains arrayed in parallel with weak coupling in-between…

强关联电子 · 物理学 2022-07-21 Svenja Marten , Gunnar Bollmark , Thomas Köhler , Salvatore R. Manmana , Adrian Kantian

Coarse-Grained Reconfigurable Arrays (CGRAs) hold great promise as power-efficient edge accelerator, offering versatility beyond AI applications. Morpher, an open-source, architecture-adaptive CGRA design framework, is specifically designed…

硬件体系结构 · 计算机科学 2023-09-13 Dhananjaya Wijerathne , Zhaoying Li , Tulika Mitra

Development of exponentially scaling methods has seen great progress in tackling larger systems than previously thought possible. One such technique, full configuration interaction quantum Monte Carlo, is a useful algorithm that allows…

强关联电子 · 物理学 2016-08-23 Norm M. Tubman , Joonho Lee , Tyler Y. Takeshita , Martin Head-Gordon , K. Birgitta Whaley

It is generally considered that concurrent transmissions should be avoided in order to reduce collisions in wireless sensor networks. Constructive interference (CI) envisions concurrent transmissions to positively interfere at the receiver.…

分布式、并行与集群计算 · 计算机科学 2012-08-06 Yin Wang , Yuan He , Dapeng Cheng , Yunhao Liu , Xiang-yang Li

Embedded cyber-physical systems (CPS) are commonly built upon heterogeneous digital and analog integrated circuits, including sensors and actuators. Less common is their deployment on parallel, NoC based designs based on general purpose…

其他计算机科学 · 计算机科学 2019-10-15 Daniela Genius

In the previous paper of this series [JCTC 2020, 16, 3757], we presented a theoretical and algorithmic framework based on a localized representation of the occupied space that exploits the inherent sparsity in the real-space evaluation of…

材料科学 · 物理学 2021-11-16 Hsin-Yu Ko , Biswajit Santra , Robert A. DiStasio

Using the Wigner distribution function, we analyze the behavior on phase space of generalized coherent states associated with the Morse potential (Morse-like coherent states). Within the f-deformed oscillator formalism, such states are…

量子物理 · 物理学 2018-02-27 O. de los Santos-Sánchez , J. Récamier

In this second part of our series on the recently proposed many-body expanded full configuration interaction (MBE-FCI) method, we introduce the concept of multideterminantal expansion references. Through theoretical arguments and numerical…

化学物理 · 物理学 2019-09-23 Janus J. Eriksen , Jürgen Gauss

Asymptotics-based configuration-interaction (CI) methods [G. Friesecke and B. D. Goddard, Multiscale Model. Simul. 7, 1876 (2009)] are a class of CI methods for atoms which reproduce, at fixed finite subspace dimension, the exact…

量子物理 · 物理学 2012-04-06 Christian Mendl , Gero Friesecke

The increasing number of processing elements and decreas- ing memory to core ratio in modern high-performance platforms makes efficient strong scaling a key requirement for numerical algorithms. In order to achieve efficient scalability on…

分布式、并行与集群计算 · 计算机科学 2015-01-14 Michael Lange , Gerard Gorman , Michele Weiland , Lawrence Mitchell , James Southern

The recently proposed Clifford Circuits Augmented Matrix Product States (CA-MPS) (arXiv:2405.09217) seamlessly augments Density Matrix Renormalization Group with Clifford circuits. In CA-MPS, the entanglement from stabilizers is transferred…

强关联电子 · 物理学 2024-07-04 Xiangjian Qian , Jiale Huang , Mingpu Qin

The present paper describes a parallel unstructured-mesh Plasma simulation code based on Finite Volume method. The code dynamically refines and coarses mesh for accurate resolution of the different features regarding the electron density.…

计算物理 · 物理学 2022-12-26 Imad Kissami , Souhail Maazioui , Fayssal Benkhaldoun

We develop deep Poisson-gamma dynamical systems (DPGDS) to model sequentially observed multivariate count data, improving previously proposed models by not only mining deep hierarchical latent structure from the data, but also capturing…

机器学习 · 统计学 2019-01-03 Dandan Guo , Bo Chen , Hao Zhang , Mingyuan Zhou

Branching processes are a class of continuous-time Markov chains (CTMCs) with ubiquitous applications. A general difficulty in statistical inference under partially observed CTMC models arises in computing transition probabilities when the…

统计计算 · 统计学 2015-03-10 Jason Xu , Vladimir N. Minin

COSA is a novel CFD system based on the compressible Navier-Stokes model for unsteady aerodynamics and aeroelasticity of fixed structures, rotary wings and turbomachinery blades. It includes a steady, time domain, and harmonic balance flow…

分布式、并行与集群计算 · 计算机科学 2013-04-30 Adrian Jackson , M. Sergio Campobasso