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We present a concise survey of matrix completion methods and associated implementations of several fundamental algorithms. Our study covers both passive and adaptive strategies. We further illustrate the behavior of a simple adaptive…

统计计算 · 统计学 2025-12-10 Connor Panish , Leo Villani

Complex analyses involving multiple, dependent random quantities often lead to graphical models - a set of nodes denoting variables of interest, and corresponding edges denoting statistical interactions between nodes. To develop statistical…

计算机视觉与模式识别 · 计算机科学 2021-04-05 Xiaoyang Guo , Anuj Srivastava , Sudeep Sarkar

For the study of complex synthetic and biological molecular systems by computer simulations one is still restricted to simple model systems or to by far too small time scales. To overcome this problem multiscale techniques are being…

统计力学 · 物理学 2007-05-23 Matej Praprotnik , Kurt Kremer , Luigi Delle Site

We study the equilibrium phase diagram of binary mixtures of hard spheres as well as of parallel hard cubes. A superior cluster algorithm allows us to establish and to access the demixed phase for both systems and to investigate the subtle…

统计力学 · 物理学 2009-10-30 Arnaud Buhot , Werner Krauth

We describe a random matrix approach that can provide generic and readily soluble mean-field descriptions of the phase diagram for a variety of systems ranging from QCD to high-T_c materials. Instead of working from specific models, phase…

高能物理 - 唯象学 · 物理学 2015-05-28 Benoit Vanderheyden , A D Jackson

Equation-free macroscale modelling is a systematic and rigorous computational methodology for efficiently predicting the dynamics of a microscale system at a desired macroscale system level. In this scheme, the given microscale model is…

动力系统 · 数学 2020-07-15 J. E. Bunder , I. G. Kevrekidis , A. J. Roberts

The application of state-of-the-art machine learning techniques to statistical physic problems has seen a surge of interest for their ability to discriminate phases of matter by extracting essential features in the many-body wavefunction or…

强关联电子 · 物理学 2017-07-04 Peter Broecker , Fakher F. Assaad , Simon Trebst

We perform a systematic comparison of various numerical schemes for the approximation of interface problems. We consider unfitted approaches in view of their application to possibly moving configurations. Particular attention is paid to the…

数值分析 · 数学 2023-04-25 Daniele Boffi , Andrea Cangiani , Marco Feder , Lucia Gastaldi , Luca Heltai

Thanks to their ability to capture complex dependence structures, copulas are frequently used to glue random variables into a joint model with arbitrary marginal distributions. More recently, they have been applied to solve statistical…

统计方法学 · 统计学 2022-08-22 Thomas Nagler , Thibault Vatter

Jarzynski's identity for the free energy difference between two equilibrium states can be viewed as a special case of a more general procedure based on phase space mappings. Solving a system's equation of motion by approximate means…

统计力学 · 物理学 2009-11-11 Wolfgang Lechner , Harald Oberhofer , Christoph Dellago , Phillip L. Geissler

We present efficient implementations of a number of operations for quantum computers. These include controlled phase adjustments of the amplitudes in a superposition, permutations, approximations of transformations and generalizations of…

量子物理 · 物理学 2014-11-18 Tad Hogg , Carlos Mochon , Wolfgang Polak , Eleanor Rieffel

An array system of coupled maps is proposed as a model for economy evolution. The local dynamics of each map or agent is controlled by two parameters. One of them represents the growth capacity of the agent and the other one is a control…

适应与自组织系统 · 物理学 2008-12-02 J. R. Sanchez , R. Lopez-Ruiz

In many situations, one can approximate the behavior of a quantum system, i.e. a wave function subject to a partial differential equation, by effective classical equations which are ordinary differential equations. A general method and…

数学物理 · 物理学 2007-05-23 Martin Bojowald , Aureliano Skirzewski

Active matter is not only indispensable to our understanding of diverse biological processes, but also provides a fertile ground for discovering novel physics. Many emergent properties impossible for equilibrium systems have been…

软凝聚态物质 · 物理学 2022-05-27 Thibault Bertrand , Chiu Fan Lee

In this paper, we address a class of specially structured problems that include speed planning, for mobile robots and robotic manipulators, and dynamic programming. We develop two new numerical procedures, that apply to the general case and…

最优化与控制 · 数学 2019-10-21 Luca Consolini , Mattia Laurini , Marco Locatelli

A simple fast algorithm of the conodes calculation in binary systems is proposed. The method is based on exact solution of the problem on common tangent to pair of approximating parabolas. Sequence of approximating parabolas pairs having…

统计力学 · 物理学 2015-03-19 A. Yu. Zakharov , A. A. Schneider

We present a new method for constructing equilibrium phase models for stellar systems, which we call the iterative method. It relies on constrained, or guided evolution, so that the equilibrium solution has a number of desired parameters…

天体物理学 · 物理学 2009-11-13 S. A. Rodionov , E. Athanassoula , N. Ya Sotnikova

An algorithm for quantum computing Hamiltonian cycles of simple, cubic, bipartite graphs is discussed. It is shown that it is possible to evolve a quantum computer into an entanglement of states which map onto the set of all possible paths…

量子物理 · 物理学 2007-05-23 T. Rudolph

Nonequilibrium statistical mechanics exhibit a variety of complex phenomena far from equilibrium. It inherits challenges of equilibrium, including accurately describing the joint distribution of a large number of configurations, and also…

统计力学 · 物理学 2024-02-08 Ying Tang , Jing Liu , Jiang Zhang , Pan Zhang

Phase diagrams serve as a highly informative tool for materials design, encapsulating information about the phases that a material can manifest under specific conditions. In this work, we develop a method in which Bayesian inference is…

材料科学 · 物理学 2023-09-06 Timofei Miryashkin , Olga Klimanova , Vladimir Ladygin , Alexander Shapeev