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The new {\em ab initio} quantum path integral Monte Carlo approach has been developed and applied for the entropy difference calculations for the strongly coupled degenerated uniform electron gas (UEG), a well--known model of simple metals.…

等离子体物理 · 物理学 2021-07-28 Vladimir Filinov , Pavel Levashov , Alexander Larkin

Advances in high-performance computing require new ways to represent large-scale scientific data to support data storage, data transfers, and data analysis within scientific workflows. Multivariate functional approximation (MFA) has…

计算几何 · 计算机科学 2024-08-26 Guanqun Ma , David Lenz , Tom Peterka , Hanqi Guo , Bei Wang

Electrostatic field matching (EFM) has recently appeared as a novel physics-inspired paradigm for data generation and transfer using the idea of an electric capacitor. However, it requires modeling electrostatic fields using neural…

机器学习 · 计算机科学 2026-03-04 Stepan I. Manukhov , Alexander Kolesov , Vladimir V. Palyulin , Alexander Korotin

Flow-based generative models have become a strong framework for high-quality generative modeling, yet pretrained models are rarely used in their vanilla conditional form: conditional samples without guidance often appear diffuse and lack…

机器学习 · 计算机科学 2026-02-25 Runlong Liao , Jian Yu , Baiyu Su , Chi Zhang , Lizhang Chen , Qiang Liu

Phase transitions driven by external stimuli are central to condensed matter physics, providing critical insights into symmetry breaking and emergent phenomena. Recently, ferrimagnetic (FiM) Mn$_3$Si$_2$Te$_6$ has attracted considerable…

In this paper, we study the Multi-Period Optimal Power Flow problem (MOPF) with electric vehicles (EV) under emission considerations. We integrate three different real-world datasets: household electricity consumption, marginal emission…

最优化与控制 · 数学 2023-05-16 Sezen Ece Kayacık , Burak Kocuk , Tuğçe Yüksel

This short communication uses a simple experiment to show that fitting to a power law distribution by using graphical methods based on linear fit on the log-log scale is biased and inaccurate. It shows that using maximum likelihood…

统计力学 · 物理学 2009-11-10 Michel L. Goldstein , Steven A. Morris , Gary G. Yen

We propose Electrostatic Field Matching (EFM), a novel method that is suitable for both generative modeling and distribution transfer tasks. Our approach is inspired by the physics of an electrical capacitor. We place source and target…

机器学习 · 计算机科学 2025-08-26 Alexander Kolesov , Manukhov Stepan , Vladimir V. Palyulin , Alexander Korotin

A new generation of wide-field radio interferometers designed for 21-cm surveys is being built as drift scan instruments allowing them to observe large fractions of the sky. With large numbers of antennas and frequency channels the enormous…

天体物理仪器与方法 · 物理学 2017-10-10 Philippe Berger , Niels Oppermann , Ue-Li Pen , J. Richard Shaw

Multi-Modal Relation Extraction (MMRE) aims at identifying the relation between two entities in texts that contain visual clues. Rich visual content is valuable for the MMRE task, but existing works cannot well model finer associations…

计算与语言 · 计算机科学 2023-06-21 Qian Li , Shu Guo , Cheng Ji , Xutan Peng , Shiyao Cui , Jianxin Li

As phasor measurement units (PMUs) become more widely used in transmission power systems, a fast state estimation (SE) algorithm that can take advantage of their high sample rates is needed. To accomplish this, we present a method that uses…

机器学习 · 计算机科学 2026-03-09 Ognjen Kundacina , Mirsad Cosovic , Dragisa Miskovic , Dejan Vukobratovic

Recent advances in the $\gamma$-ray observations of solar flares by the \textit{Fermi} satellite, demand revisions in the hadronic $\gamma$-ray flux computation below 1 GeV. In this work we utilize recently updated pion production cross…

高能天体物理现象 · 物理学 2018-09-19 Ervin Kafexhiu , Carlo Romoli , Andrew M. Taylor , Felix Aharonian

Electromagnetic induction (EMI) techniques are widely used in geophysical surveying. Their success is mainly due to their easy and fast data acquisition, but the effectiveness of data inversion is strongly influenced by the quality of…

The optical properties of an electron gas in a magnetic field at filling fractions \nu = {1\over 2m} (m=1,2,3...) are investigated using the composite fermion picture. The response of the system to the presence of valence-band holes is…

凝聚态物理 · 物理学 2009-10-28 Darren J. T. Leonard , Neil F. Johnson , V. Nikos Nicopoulos , F. J. Rodriguez

Standard Model (SM) of particle physics has achieved enormous success in describing the interactions among the known fundamental constituents of nature, yet it fails to describe phenomena for which there is very strong experimental…

高能物理 - 唯象学 · 物理学 2021-11-17 Subhaditya Bhattacharya , Jose Wudka

Permanent Magnet multipoles (PMM) are widely used in accelerators to either focus particle beams or confine plasma in ion sources. The real magnetic field created by PMM is calculated by magnetic field simulation software and then used in…

加速器物理 · 物理学 2020-05-20 Thomas Thuillier , Thomas Andre , Jose-Antonio Mendez-Giono

We propose a new "Poisson flow" generative model (PFGM) that maps a uniform distribution on a high-dimensional hemisphere into any data distribution. We interpret the data points as electrical charges on the $z=0$ hyperplane in a space…

机器学习 · 计算机科学 2022-10-21 Yilun Xu , Ziming Liu , Max Tegmark , Tommi Jaakkola

FEbeam is a compact field emission data processing interface with the capability to analyze the field emission cathode performance in an rf injector by extracting the field enhancement factor, local field, and effective emission area from…

加速器物理 · 物理学 2021-06-16 Mitchell Schneider , Emily Jevarjian , Jiahang Shao , Sergey V. Baryshev

Field emission under ultra-fast intense terahertz fields provides a promising approach for generating electron bunches with ultrashort pulse duration and high charge densities. It is generally believed that the field emission current…

A previous two-step hydrodynamic model calculation of angle-resolved photoemission has been improved by modeling the surface with a soft analytic function. The same ground-state potential is used to screen the photon field and to calculate…

凝聚态物理 · 物理学 2015-06-25 S. Natschlaeger , J. Alberich , N. Barberan , J. Bausells , R. Ruppin , C. Simo