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Advances in data acquisition and computational methods have accelerated the use of differential equation based modelling for complex systems. Such systems are often described by coupled (or more) variables, yet governing equation is…

机器学习 · 计算机科学 2026-01-01 Esha Saha , Hao Wang

For materials which are incorrectly predicted by density functional theory to be metallic, an iterative procedure must be adopted in order to perform GW calculations. In this paper we test two iterative schemes based on the quasi-particle…

材料科学 · 物理学 2007-05-23 V. A. Popa , G. Brocks , P. J. Kelly

The simulation of the elastodynamics equations at high-frequency suffers from the well known pollution effect. We present a Petrov--Galerkin multiscale sub-grid correction method that remains pollution free in natural resolution and…

数值分析 · 数学 2022-03-15 Donald L. Brown , Dietmar Gallistl

The gravitational wave spectrum arising from using the full velocity profile is well known to differ qualitatively from analytic fits to a broken power law. Former studies have shown that unlike the uncertainties arising from thermal field…

高能物理 - 唯象学 · 物理学 2025-12-24 Fazlollah Hajkarim , Graham White , Yang Xiao

The electronic bands of twisted bilayer graphene (TBLG) with a large-period moir\'e superlattice fracture to form narrow Bloch minibands that are spectrally isolated by forbidden energy gaps from remote dispersive bands. When these gaps are…

介观与纳米尺度物理 · 物理学 2020-10-28 Vo Tien Phong , E. J. Mele

Suppose that we wish to estimate a vector $\mathbf{x} \in \mathbb{C}^n$ from a small number of noisy linear measurements of the form $\mathbf{y} = \mathbf{A x} + \mathbf{z}$, where $\mathbf{z}$ represents measurement noise. When the vector…

信息论 · 计算机科学 2016-09-21 Mark A. Davenport , Andrew K. Massimino , Deanna Needell , Tina Woolf

Diffusion models have attained prominence for their ability to synthesize a probability distribution for a given dataset via a diffusion process, enabling the generation of new data points with high fidelity. However, diffusion processes…

机器学习 · 计算机科学 2024-11-25 Shervin Khalafi , Dongsheng Ding , Alejandro Ribeiro

Superconducting mechanism of cuprates is discussed in the light of the proximity of the Mott insulator. The proximity accompanied by suppression of coherence takes place in an inhomogeneous way in the momentum space in finite-dimensional…

强关联电子 · 物理学 2007-05-23 Masatoshi Imada , Shigeki Onoda

Periodic signals composed of periodic mixtures admit sparse representations in nested periodic dictionaries (NPDs). Therefore, their underlying hidden periods can be estimated by recovering the exact support of said representations. In this…

信息论 · 计算机科学 2024-06-05 Pouria Saidi , George K. Atia

We demonstrate a deep learning framework capable of recovering physical parameters from the Nonlinear Schrodinger Equation (NLSE) under severe noise conditions. By integrating Physics-Informed Neural Networks (PINNs) with automatic…

机器学习 · 计算机科学 2026-01-08 Pietro de Oliveira Esteves

With the rise in edge-computing devices, there has been an increasing demand to deploy energy and resource-efficient models. A large body of research has been devoted to developing methods that can reduce the size of the model considerably…

The problem of ensuring constraints satisfaction on the output of machine learning models is critical for many applications, especially in safety-critical domains. Modern approaches rely on penalty-based methods at training time, which do…

机器学习 · 计算机科学 2025-04-14 Gaetano Signorelli , Michele Lombardi

A new field of research is rapidly expanding at the crossroad between statistical physics, information theory and combinatorial optimization. In particular, the use of cutting edge statistical physics concepts and methods allow one to solve…

神经元与认知 · 定量生物学 2008-03-28 Marc Mezard , Thierry Mora

Form a pure mathematical point of view, common functional forms representing different physical phenomena can be defined. For example, rates of chemical reactions, diffusion and heat transfer are all governed by exponential-type…

机器学习 · 计算机科学 2019-10-01 Navid Zobeiry , Keith D. Humfeld

Deep learning-based garment draping has emerged as a promising alternative to traditional Physics-Based Simulation (PBS), yet robust collision handling remains a critical bottleneck. Most existing methods enforce physical validity through…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Minghai Chen , Mingyuan Liu , Ning Ma , Jianqing Li , Yuxiang Huan

Regional climate information at kilometer scales is essential for assessing the impacts of climate change, but generating it with global climate models is too expensive due to their high computational costs. Machine learning models offer a…

大气与海洋物理 · 物理学 2026-04-07 Kevin Debeire , Aytaç Paçal , Pierre Gentine , Luis Medrano-Navarro , Nils Thuerey , Veronika Eyring

We propose a new approach to improve the precision of astrophysical parameter constraints for the 21cm signal from the epoch of reionisation (EoR). Our method introduces new sets of summary statistics, hereafter `evolution compressed'…

宇宙学与河外天体物理 · 物理学 2024-06-12 Ian Hothi , Erwan Allys , Benoit Semelin , Francois Boulanger

Learning complex physical dynamics purely from data is challenging due to the intrinsic properties of systems to be satisfied. Incorporating physics-informed priors, such as in Hamiltonian Neural Networks (HNNs), achieves high-precision…

机器学习 · 计算机科学 2024-10-10 Zijie Huang , Wanjia Zhao , Jingdong Gao , Ziniu Hu , Xiao Luo , Yadi Cao , Yuanzhou Chen , Yizhou Sun , Wei Wang

Band engineering in twisted bilayers of the five generic two-dimensional Bravais networks is demonstrated. We first derive symmetry-based constraints on the interlayer coupling, which helps us to predict and understand the shape of the…

强关联电子 · 物理学 2019-11-13 Toshikaze Kariyado , Ashvin Vishwanath

Deep learning accelerators efficiently train over vast and growing amounts of data, placing a newfound burden on commodity networks and storage devices. A common approach to conserve bandwidth involves resizing or compressing data prior to…

机器学习 · 计算机科学 2021-08-13 Michael Kuchnik , George Amvrosiadis , Virginia Smith