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检索条件"机构=Physics Department and Program in Applied and Computational Mathematics"
3229 条 记 录,以下是641-650 订阅
Predicting nonequilibrium Green’s function dynamics and photoemission spectra via nonlinear integral operator learning
arXiv
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arXiv 2024年
作者: Zhu, Yuanran Yin, Jia Reeves, Cian C. Yang, Chao Vlček, Vojtěch Applied Mathematics and Computational Research Division Lawerence Berkeley National Laboratory Berkeley94720 United States School of Mathematical Sciences Fudan University Shanghai200437 China Department of Physics University of California Santa Barbara Santa Barbara93117 United States Department of Chemistry and Biochemistry University of California Santa Barbara Santa Barbara93117 United States Department of Materials University of California Santa Barbara Santa Barbara93117 United States
Understanding the dynamics of nonequilibrium quantum many-body systems is an important research topic in a wide range of fields across condensed matter physics, quantum optics, and high-energy physics. However, numeri... 详细信息
来源: 评论
A Universal Description of Stochastic Oscillators
arXiv
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arXiv 2023年
作者: Pérez-Cervera, Alberto Gutkin, Boris Thomas, Peter J. Lindner, Benjamin Universidad Complutense de Madrid Instituto de Matemática Inderdisciplinar Madrid Spain Group for Neural Theory LNC2 INSERM U960 DEC Ecole Normale Supérieure - PSL University Paris France Department of Mathematics Applied Mathematics and Statistics Case Western Reserve University ClevelandOH United States Department of Physics Bernstein Center for Computational Neuroscience Humboldt University Berlin Germany
Many systems in physics, chemistry and biology exhibit oscillations with a pronounced random component. Such stochastic oscillations can emerge via different mechanisms, for example linear dynamics of a stable focus w... 详细信息
来源: 评论
Free-space realization of tunable pin-like optical vortex beams
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Photonics Research 2021年 第7期9卷 1204-1212页
作者: DOMENICO BONGIOVANNI DENGHUI LI MIHALIS GOUTSOULAS HAO WU YI HU DAOHONG SONG ROBERTO MORANDOTTI NIKOLAOS KEFREMIDIS ZHIGANG CHEN MOE Key Laboratory of Weak-Light Nonlinear Photonics TEDA Applied Physics Institute and School of PhysicsNankai UniversityTianjin 300457China INRS-EMT 1650 Blvd.Lionel-BouletVarennesQuebec J3X 1S2Canada Department of Applied Mathematics University of CreteHeraklionCrete 71409Greece Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Institute of Applied and Computational Mathematics FORTHHeraklionCrete 70013Greece Department of Physics&Astronomy San Francisco State UniversitySan FranciscoCalifornia 94132USA
We demonstrate,both analytically and experimentally,free-space pin-like optical vortex beams (POVBs). Such angular-momentum-carrying beams feature tunable peak intensity and undergo robust antidiffracting propagation,... 详细信息
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THE COMPLEX INTERPLAY BETWEEN RISK TOLERANCE AND THE SPREAD OF INFECTIOUS DISEASES
arXiv
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arXiv 2024年
作者: Nguyen, Maximilian Freedman, Ari Cheung, Matthew Saad-Roy, Chadi Espinoza, Baltazar Grenfell, Bryan Levin, Simon Lewis-Sigler Institute Princeton University PrincetonNJ08544 United States Department of Ecology and Evolutionary Biology Princeton University PrincetonNJ United States Program in Applied and Computational Mathematics Princeton University PrincetonNJ United States Miller Institute for Basic Research in Science Department of Integrative Biology University of California Berkeley BerkeleyCA United States Biocomplexity Institute University of Virginia CharlottesvilleVA United States
Risk-driven behavior provides a feedback mechanism through which individuals both shape and are collectively affected by an epidemic. We introduce a general and flexible compartmental model to study the effect of hete... 详细信息
来源: 评论
Quantum initial conditions for curved inflating universes
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Physical Review D 2024年 第12期109卷 123502-123502页
作者: M. I. Letey Z. Shumaylov F. J. Agocs W. J. Handley M. P. Hobson A. N. Lasenby Kavli Institute for Cosmology Madingley Road Cambridge CB3 0HA United Kingdom John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge Massachusetts 02138 USA Department of Applied Mathematics and Theoretical Physics University of Cambridge Wilberforce Road Cambridge CB3 0WA United Kingdom Center for Computational Mathematics Flatiron Institute 162 Fifth Avenue New York New York USA Astrophysics Group Cavendish Laboratory J. J. Thomson Avenue Cambridge CB3 0HE United Kingdom
We discuss the challenges of motivating, constructing, and quantizing a canonically normalized inflationary perturbation in spatially curved universes. We show that this has historically proved challenging due to the ... 详细信息
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Spread complexity as classical dilaton solutions
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Physical Review D 2023年 第2期108卷 025013-025013页
作者: Arghya Chattopadhyay Arpita Mitra Hendrik J. R. van Zyl Service de Physique de l’Univers Champs et Gravitation Université de Mons 20 Place du Parc 7000 Mons Belgium Department of Physics Pohang University of Science and Technology Pohang 37673 Korea Laboratory for Quantum Gravity & Strings Department of Mathematics & Applied Mathematics University of Cape Town Cape Town 7700 Rondebosch South Africa The National Institute for Theoretical and Computational Sciences Private Bag X1 Matieland 7600 Stellenbosch South Africa
We demonstrate a relation between Nielsen’s approach toward circuit complexity and Krylov complexity through a particular construction of quantum state space geometry. We start by associating Kähler structures o... 详细信息
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Multigoal-oriented dual-weighted-residual error estimation using PINNs
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Machine Learning for computational Science and Engineering 2025年 第1期1卷 1-18页
作者: Chakraborty, Ayan Wick, Thomas Rabczuk, Timon Zhuang, Xiaoying Chair of Computational Science and Simulation Technology Institute of Photonics Faculty of Mathematics and Physics Leibniz University Hannover Germany Institute of Applied Mathematics Welfengarten 1 AG Wissenschaftliches Rechnen Leibniz University Hannover Germany Cluster of Excellence PhoenixD (Photonics Optics and Engineering - Innovation Across Disciplines) Leibniz University Hannover Hannover Germany Université Paris-Saclay ENS Paris-Saclay LMT - Laboratoire de Mecanique et Technologie Gif-sur-Yvette France Institute of Structural Mechanics Bauhaus University Weimar Weimar Germany Department of Geotechnical Engineering College of Civil Engineering Tongji University Shanghai China
Deep learning has shown successful application in visual recognition and certain artificial intelligence tasks. It is mainly considered as a powerful tool with high flexibility to approximate functions. This paper pro...
来源: 评论
Design and Characterization of Type-Ii Superlattice-Based Inas/Alsb/Gasb Detector Structure
SSRN
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SSRN 2024年
作者: Kızılkaya, Kürşat Öztürk, Mustafa Kemal Hoştut, Mustafa Ergün, Yüksel Özçelik, Süleyman Turkish Aerospace Fethiye District Havacılık Avenue No:17 Ankara06980 Turkey Advanced Technologies Program Graduate School of Natural and Applied Sciences Gazi University Ankara06560 Turkey Photonics Application and Research Center Gazi University Ankara06560 Turkey Physics Department of Science Faculty Gazi University Ankara06560 Turkey Physics Department of Science Faculty Eskisehir Technical University Eskisehir26470 Turkey Photonics Department of Applied Science Faculty Gazi University Ankara06560 Turkey Department of Mathematics and Science Education Faculty of Education Akdeniz University Antalya07058 Turkey
In this study, N-Structured based InAs/AlSb/GaSb Type-II Superlattice pbin type detector structures are investigated. These systems make absorption in infrared region in electromagnetic spectrum as detectors. Structur... 详细信息
来源: 评论
Shock-induced migration of asymmetry tilt grain boundary in iron bicrystal: A case study of Σ3
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Chinese physics B 2019年 第12期28卷 273-279页
作者: Xueyang Zhang Kun Wang Jun Chen Wangyu Hu Wenjun Zhu Shifang Xiao Huiqiu Deng Mengqiu Cai Department of Applied Physics School of Physics and ElectronicsHunan UniversityChangsha 410082China Laboratory of Computational Physics Institute of Applied Physics and Computational MathematicsBeijing 100088China Center for Applied Physics and Technology Peking UniversityBeijing 100087China College of Materials Science and Engineering Hunan UniversityChangsha 410082China National Key Laboratory of Shock Wave and Detonation Physics Institute of Fluid PhysicsMianyang 621900China
Many of our previous studies have discussed the shock response of symmetrical grain boundaries in iron *** this paper, the molecular dynamics simulation of an iron bicrystal containing Σ3 [110] asymmetry tilt grain b... 详细信息
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Atomic stick-slip friction as a two-dimensional thermally activated process
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Physical Review B 2022年 第16期105卷 165429-165429页
作者: Quanzhou Yao Jiawei Sun Xiaoying Zhuang Peter Wriggers Xi-Qiao Feng Qunyang Li Applied Mechanics Laboratory Department of Engineering Mechanics Tsinghua University Beijing 100084 China Chair of Computational Science and Simulation Technology Institute of Photonics Department of Mathematics and Physics Leibniz University Hannover 30167 Hannover Germany Institute for Continuum Mechanics Leibniz University Hannover Garbsen Germany State Key Laboratory of Tribology Tsinghua University Beijing 100084 China
Widely recognized as a thermally activated process, atomic stick-slip friction has been typically explained by Prandtl-Tomlinson model with thermal activation. Despite the limited success, theoretical predictions from... 详细信息
来源: 评论