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相关论文: Multicanonical Cluster Algorithm and the 2-D 7-Sta…

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We discuss the recently proposed multicanonical multigrid Monte Carlo method and apply it to the scalar $\phi^4$-model on a square lattice. To investigate the performance of the new algorithm at the field-driven first-order phase…

高能物理 - 格点 · 物理学 2009-10-28 Wolfhard Janke , Tilman Sauer

We apply the recently developed dual fermion algorithm for disordered interacting systems to the Anderson-Hubbard model. This algorithm is compared with dynamical cluster approximation calculations for a one-dimensional system to establish…

强关联电子 · 物理学 2017-01-24 P. Haase , S. -X. Yang , T. Pruschke , J. Moreno , M. Jarrell

We modified the recently proposed multicanonical MC algorithm for the case of a magnetic field driven order--order phase transition. We test this {\it multimagnetic} Monte Carlo algorithm for the D=2 Ising model at $\beta=0.5$ and simulate…

高能物理 - 格点 · 物理学 2007-05-23 U. Hansmann , B. A. Berg , T. Neuhaus

Monte Carlo simulations are performed to study the two-dimensional Potts models with q=3 and 4 states on directed Small-World network. The disordered system is simulated applying the Heat bath Monte Carlo update algorithm. A first-order and…

统计力学 · 物理学 2015-06-05 P. R. O. da Silva , F. W. S. Lima , R. N. Costa Filho

A new Monte Carlo method is proposed for fermion systems interacting with classical degrees of freedom. To obtain a weight for each Monte Carlo sample with a fixed configuration of classical variables, the moment expansion of the density of…

强关联电子 · 物理学 2015-06-24 Yukitoshi Motome , Nobuo Furukawa

Machine learning and in particular deep learning algorithms are the emerging approaches to data analysis. These techniques have transformed traditional data mining-based analysis radically into a learning-based model in which existing data…

We present a new technique for visualizing high-dimensional data called cluster MDS (cl-MDS), which addresses a common difficulty of dimensionality reduction methods: preserving both local and global structures of the original sample in a…

图形学 · 计算机科学 2024-05-27 Patricia Hernández-León , Miguel A. Caro

Using the random-cluster representation of the $q$-state Potts models we consider the pooling of data from cluster-update Monte Carlo simulations for different thermal couplings $K$ and number of states per spin $q$. Proper combination of…

统计力学 · 物理学 2009-11-07 Martin Weigel , Wolfhard Janke , Chin-Kun Hu

In the absence of impurities and boundary effects, first order phase transitions are initiated by the nucleation of critical bubbles. In thermally driven transitions many systems can remain metastable for an extended time, possibly tens of…

高能物理 - 格点 · 物理学 2025-02-21 Jaakko Hällfors , Kari Rummukainen

We present an exact quantum Monte Carlo method for spin systems coupled to dissipative bosonic baths which makes use of nonlocal wormhole updates to simulate the retarded spin-flip interactions originating from an off-diagonal spin-boson…

强关联电子 · 物理学 2022-05-17 Manuel Weber

This paper presents algorithms for hierarchical, agglomerative clustering which perform most efficiently in the general-purpose setup that is given in modern standard software. Requirements are: (1) the input data is given by pairwise…

机器学习 · 统计学 2011-09-13 Daniel Müllner

A recent reformulation [1] of the problem of Coulomb gases in the presence of a dynamical dielectric medium showed that finite temperature simulations of such systems can be accomplished on the basis of completely local Hamiltonians on a…

软凝聚态物质 · 物理学 2009-11-11 A. Duncan , R. D. Sedgewick

The physics of crystalline membranes, i.e. fixed-connectivity surfaces embedded in three dimensions and with an extrinsic curvature term, is very rich and of great theoretical interest. To understand their behavior, numerical simulations…

计算物理 · 物理学 2009-10-30 G. Thorleifsson , M. Falcioni

In this paper we extend an earlier result within Dempster-Shafer theory ["Fast Dempster-Shafer Clustering Using a Neural Network Structure," in Proc. Seventh Int. Conf. Information Processing and Management of Uncertainty in Knowledge-Based…

人工智能 · 计算机科学 2007-05-23 Johan Schubert

Clustering real world data often faced with curse of dimensionality, where real world data often consist of many dimensions. Multidimensional data clustering evaluation can be done through a density-based approach. Density approaches based…

数据库 · 计算机科学 2010-12-30 Rahmat Widia Sembiring , Jasni Mohamad Zain

We simulate single and multiple Ising models coupled to 2-d gravity using both the Swendsen-Wang and Wolff algorithms to update the spins. We study the integrated autocorrelation time and find that there is considerable critical slowing…

高能物理 - 格点 · 物理学 2009-10-22 M. Bowick , M. Falcioni , G. Harris , E. Marinari

We study the two-dimensional classical XY model by the large-scale Monte Carlo simulation of the Swendsen-Wang multi-cluster algorithm using multiple GPUs on the open science supercomputer TSUBAME 2.0. Simulating systems up to the linear…

统计力学 · 物理学 2012-10-24 Yukihiro Komura , Yutaka Okabe

Hamiltonian Monte Carlo (HMC) and related algorithms have become routinely used in Bayesian computation. In this article, we present a simple and provably accurate method to improve the efficiency of HMC and related algorithms with…

统计计算 · 统计学 2020-03-10 Akihiko Nishimura , David Dunson

We review the background of the cluster algorithms in Monte Carlo simulation of statistical physics problems. One of the first such successful algorithm was developed by Swendsen and Wang eight years ago. In contrast to the local…

凝聚态物理 · 物理学 2007-05-23 Jian-Sheng Wang

We discuss a new Monte Carlo algorithm for the simulation of complex fluids. This algorithm employs geometric operations to identify clusters of particles that can be moved in a rejection-free way. It is demonstrated that this geometric…

统计力学 · 物理学 2015-06-25 Erik Luijten , Jiwen Liu