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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591-600 订阅
排序:
One-sided GRP solver and numerical boundary conditions for compressible fluid flows
arXiv
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arXiv 2021年
作者: Li, Jiequan Zhang, Qinglong Institute of Applied Physics and Computational Mathematics Beijing Center for Applied Physics and Technology Peking University China State Key Laboratory for Turbulence Research and Complex System Peking University China Department of Mathematics and Statistics Ningbo University China
In the computation of compressible fluid flows, numerical boundary conditions are always necessary for all physical variables at computational boundaries while just partial physical variables are often prescribed as p... 详细信息
来源: 评论
On the approximability of random-hypergraph MAX-3-XORSAT problems with quantum algorithms
arXiv
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arXiv 2023年
作者: Kapit, Eliot Barton, Brandon A. Feeney, Sean Grattan, George Patnaik, Pratik Sagal, Jacob Carr, Lincoln D. Oganesyan, Vadim Department of Physics Colorado School of Mines 1523 Illinois St GoldenCO80401 United States Department of Applied Mathematics and Statistics Colorado School of Mines 1500 Illinois St GoldenCO80401 United States Quantum Engineering Program Colorado School of Mines 1523 Illinois St GoldenCO80401 United States Department of Physics and Astronomy College of Staten Island CUNY Staten IslandNY10314 United States Physics Program and Initiative for the Theoretical Sciences The Graduate Center CUNY New YorkNY10016 United States Center for Computational Quantum Physics Flatiron Institute 162 5th Avenue New YorkNY10010 United States
A canonical feature of the constraint satisfaction problems in NP is approximation hardness, where in the worst case, finding sufficient-quality approximate solutions is exponentially hard for all known methods. Funda... 详细信息
来源: 评论
Local number fluctuations in ordered and disordered phases of water across temperatures: Higher-order moments and degrees of tetrahedrality
arXiv
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arXiv 2024年
作者: Klatt, Michael A. Kim, Jaeuk Gartner, Thomas E. Torquato, Salvatore Institute for AI Safety and Security Wilhelm-Runge-Str. 10 Ulm89081 Germany Institute for Material Physics in Space Köln51170 Germany Department of Physics Ludwig-Maximilians-Universität München Schellingstr. 4 Munich80799 Germany Department of Chemistry Princeton University PrincetonNJ08544 United States Department of Physics Princeton University PrincetonNJ08544 United States Princeton Materials Institute Princeton University PrincetonNJ08544 United States Department of Chemical & Biomolecular Engineering Lehigh University BethlehemPA18015 United States Program in Applied and Computational Mathematics Princeton University PrincetonNJ08544 United States
The isothermal compressibility (i.e., the asymptotic number variance) of equilibrium liquid water as a function of temperature is minimal near ambient conditions. This anomalous non-monotonic temperature dependence is... 详细信息
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Breakdown of Boltzmann-type Models for the Alignment of Self-propelled Rods
arXiv
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arXiv 2023年
作者: Murphy, Patrick Perepelitsa, Misha Timofeyev, Ilya Lieber-Kotz, Matan Islas, Brandon Igoshin, Oleg A. Department of Bioengineering Rice University HoustonTX77005 United States Center for Theoretical Biological Physics Rice University HoustonTX77005 United States Department of Mathematics University of Houston TX77204 United States Department of Computational and Applied Mathematics Rice University HoustonTX77005 United States Department of Chemistry Rice University HoustonTX77005 United States Department of Biosciences Rice University HoustonTX77005 United States
Studies in the collective motility of organisms use a range of analytical approaches to formulate continuous kinetic models of collective dynamics from rules or equations describing agent interactions. However, the de... 详细信息
来源: 评论
Impact of time-correlated noise on zero-noise extrapolation
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Physical Review A 2022年 第5期106卷 052406-052406页
作者: Kevin Schultz Ryan LaRose Andrea Mari Gregory Quiroz Nathan Shammah B. David Clader William J. Zeng Johns Hopkins University Applied Physics Laboratory Laurel Maryland 20723 USA Department of Computational Mathematics Science and Engineering Michigan State University East Lansing Michigan 48823 USA Unitary Fund Walnut California 91789 USA Goldman Sachs & Co New York New York 10282 USA
Zero-noise extrapolation is a quantum error mitigation technique that has typically been studied under the ideal approximation that the noise acting on a quantum device is not time correlated. In this paper, we invest... 详细信息
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Sequential Markov Chain Monte Carlo for Lagrangian Data Assimilation with Applications to Unknown Data Locations
arXiv
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arXiv 2023年
作者: Ruzayqat, Hamza Beskos, Alexandros Crisan, Dan Jasra, Ajay Kantas, Nikolas Applied Mathematics and Computational Science Program Computer Electrical and Mathematical Sciences and Engineering Division King Abdullah University of Science and Technology Thuwal23955-6900 Saudi Arabia Department of Statistical Science University College London LondonWC1E 6BT United Kingdom Department of Mathematics Imperial College London LondonSW7 2AZ United Kingdom
We consider a class of high-dimensional spatial filtering problems, where the spatial locations of observations are unknown and driven by the partially observed hidden signal. This problem is exceptionally challenging... 详细信息
来源: 评论
Equivariant geometric convolutions for emulation of dynamical systems
arXiv
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arXiv 2023年
作者: Gregory, Wilson G. Hogg, David W. Blum-Smith, Ben Arias, Maria Teresa Wong, Kaze W.K. Villar, Soledad Department of Applied Mathematics and Statistics Johns Hopkins University BaltimoreMD United States Center for Cosmology and Particle Physics Department of Physics New York University New YorkNY United States Max-Planck-Institut für Astronomie Heidelberg Germany Center for Computational Astrophysics Flatiron Institute New YorkNY United States Department of Mathematics Universidad Autónoma de Madrid Madrid Spain Mathematical Institute for Data Science Johns Hopkins University BaltimoreMD United States
Machine learning methods are increasingly being employed as surrogate models in place of computationally expensive and slow numerical integrators for a bevy of applications in the natural sciences. However, while the ... 详细信息
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Finite-thickness effect of the fluids on bubbles and spikes in Richtmyer–Meshkov instability for arbitrary Atwood numbers
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Plasma Science and Technology 2019年 第2期21卷 9-15页
作者: Wanhai LIU Changping YU Pei WANG Zheng FU Lili WANG Yulian CHEN Research Center of Computational Physics Mianyang Normal University LHD Institute of MechanicsChinese Academy of Sciences Institute of Applied Physics and Computational Mathematics Mechanical and Electrical Engineering Department Lanzhou Resources and Environment Voc-Tech College
This paper investigates the finite-thickness effect of two superimposed fluids on bubbles and spikes in Richtmyer–Meshkov instability(RMI) for arbitrary Atwood numbers by using the method of the small parameter expan... 详细信息
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Complexity for an open quantum system
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Physical Review D 2022年 第4期105卷 046011-046011页
作者: Arpan Bhattacharyya Tanvir Hanif S. Shajidul Haque Md. Khaledur Rahman Indian Institute of Technology Gandhinagar Gujarat 382355 India Department of Theoretical Physics University of Dhaka Dhaka-1000 Bangladesh High Energy Physics Cosmology & Astrophysics Theory Group and The Laboratory for Quantum Gravity & Strings Department of Mathematics and Applied Mathematics University of Cape Town Rondebosch Cape Town 7700 South Africa National Institute for Theoretical and Computational Sciences (NITheCS) Rondebosch Cape Town 7700 South Africa
We study the complexity for an open quantum system. Our system is a harmonic oscillator coupled to a one-dimensional massless scalar field, which acts as the bath. Specifically, we consider the reduced density matrix ... 详细信息
来源: 评论
Diffusion spreadability as a probe of the microstructure of complex media across length scales
arXiv
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arXiv 2021年
作者: Torquato, Salvatore Department of Chemistry Princeton Institute for the Science and Technology of Materials Program in Applied and Computational Mathematics Princeton University PrincetonNJ08544 United States
Understanding time-dependent diffusion processes in multiphase media is of great importance in physics, chemistry, materials science, petroleum engineering and biology. Consider the time-dependent problem of mass tran... 详细信息
来源: 评论