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检索条件"主题词=Metropolis algorithm"
650 条 记 录,以下是211-220 订阅
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Monte Carlo evaluation of the continuum limit of the two-point function of two Euclidean Higgs real scalar fields subject to affine quantization
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Physical Review D 2021年 第5期104卷 054514-054514页
作者: Riccardo Fantoni John R. Klauder Università di Trieste Dipartimento di Fisica strada Costiera 11 34151 Grignano (Trieste) Italy Department of Physics and Department of Mathematics University of Florida Gainesville Florida 32611-8440 USA
We study canonical and affine versions of the quantized covariant Euclidean Higgs scalar field-theory for two real fields on four dimensional lattices through the Monte Carlo method. We calculate the two-point functio... 详细信息
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One-dimensional Monte Carlo dynamics at zero temperature
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JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL 2021年 第48期54卷 485001-485001页
作者: Chepelianskii, Alexei D. Majumdar, Satya N. Schawe, Hendrik Trizac, Emmanuel Univ Paris Saclay CNRS Lab Phys Solides F-91405 Orsay France Univ Paris Saclay CNRS LPTMS F-91405 Orsay France CY Cergy Paris Univ CNRS LPTM UMR 8089 F-95000 Cergy France
We investigate, both analytically and with numerical simulations, a Monte Carlo dynamics at zero temperature, where a random walker evolving in continuous space and discrete time seeks to minimize its potential energy... 详细信息
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Simulating Yang-Mills theories with a complex coupling
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Physical Review D 2021年 第9期103卷 094505-094505页
作者: Jan M. Pawlowski Manuel Scherzer Christian Schmidt Felix P. G. Ziegler Felix Ziesché Institut für Theoretische Physik Universität Heidelberg Philosophenweg 16 D-69120 Heidelberg Germany ExtreMe Matter Institute EMMI GSI Planckstraße 1 D-64291 Darmstadt Germany Fakultät für Physik Universität Bielefeld Postfach 100131 D-33501 Bielefeld Germany CP3-Origins and Danish IAS Department of Mathematics and Computer Science University of Southern Denmark Campusvej 55 5230 Odense M Denmark
We propose a novel simulation strategy for Yang-Mills theories with a complex coupling, based on the Lefschetz thimble decomposition. We envisage that the approach developed in the present work can also be adapted to ... 详细信息
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Bayes analysis of some important lifetime models using MCMC based approaches when the observations are left truncated and right censored
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RELIABILITY ENGINEERING & SYSTEM SAFETY 2021年 214卷 107747-107747页
作者: Ranjan, Rakesh Sen, Rijji Upadhyay, Satyanshu K. Banaras Hindu Univ DST Ctr Interdisciplinary Math Sci Varanasi Uttar Pradesh India Calcutta Univ Behala Coll Dept Stat Kolkata W Bengal India Banaras Hindu Univ Dept Stat Varanasi Uttar Pradesh India
The paper considers the Bayes analysis of important lifetime models such as the Weibull, the gamma, and the lognormal distributions when the available data are left truncated and right-censored. Weakly informative pri... 详细信息
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Modelling Dengue Fever Epidemics in Jakarta
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International Journal of Applied and Computational Mathematics 2020年 第3期6卷 1-25页
作者: Schäfer, Moritz Götz, Thomas Mathematical Institute University Koblenz-Landau Universitätsstraße 1 Koblenz 56070 Germany
This article thematizes the qualitative estimation of transmission dynamics of Dengue fever. At first, a single-compartment vector-host model for the total infective cases in one homogeneous area has been set up and s... 详细信息
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Unbiased Monte Carlo cluster updates with autoregressive neural networks
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Physical Review Research 2021年 第4期3卷 L042024-L042024页
作者: Dian Wu Riccardo Rossi Giuseppe Carleo Institute of Physics École Polytechnique Fédérale de Lausanne (EPFL) Lausanne CH-1015 Switzerland
Efficient sampling of complex high-dimensional probability distributions is a central task in computational science. Machine learning methods like autoregressive neural networks, used with Markov chain Monte Carlo sam... 详细信息
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Early dark energy resolution to the Hubble tension in light of weak lensing surveys and lensing anomalies
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Physical Review D 2021年 第6期103卷 063502-063502页
作者: Riccardo Murgia Guillermo F. Abellán Vivian Poulin Laboratoire Univers & Particules de Montpellier (LUPM) CNRS & Université de Montpellier (UMR-5299) Place Eugène Bataillon F-34095 Montpellier Cedex 05 France
A constant early dark energy (EDE) component contributing a fraction fEDE(zc)∼10% of the energy density of the universe around zc≃3500 and diluting as or faster than radiation afterwards, can provide a simple resolut... 详细信息
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Efficient modeling of trivializing maps for lattice ϕ4 theory using normalizing flows: A first look at scalability
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Physical Review D 2021年 第9期104卷 094507-094507页
作者: Luigi Del Debbio Joe Marsh Rossney Michael Wilson Higgs Centre for Theoretical Physics School of Physics and Astronomy The University of Edinburgh Edinburgh EH9 3FD United Kingdom
General-purpose Markov chain Monte Carlo sampling algorithms suffer from a dramatic reduction in efficiency as the system being studied is driven toward a critical point through, for example, taking the continuum limi... 详细信息
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Inferring microscale properties of interacting systems from macroscale observations
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Physical Review Research 2021年 第4期3卷 043074-043074页
作者: Nazareno Campioni Dirk Husmeier Juan Morales Jennifer Gaskell Colin J. Torney School of Mathematics & Statistics University of Glasgow University Avenue Glasgow G12 8QQ United Kingdom Grupo de Ecología Cuantitativa INIBIOMA-CONICET Universidad Nacional del Comahue Quintral 1250 CP: 8400 San Carlos de Bariloche Río Negro Argentina
Emergent dynamics of complex systems are observed throughout nature and society. The coordinated motion of bird flocks, the spread of opinions, fashions and fads, or the dynamics of an epidemic, are all examples of co... 详细信息
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Normalizing flows and the real-time sign problem
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Physical Review D 2021年 第11期103卷 114509-114509页
作者: Scott Lawrence Yukari Yamauchi Department of Physics University of Colorado Boulder Colorado 80309 USA Department of Physics University of Maryland College Park Maryland 20742 USA
Normalizing flows have recently been applied to the problem of accelerating Markov chains in lattice field theory. We propose a generalization of normalizing flows that allows them to applied to theories with a sign p... 详细信息
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