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We simulate by lattice Boltzmann the steady shearing of a binary fluid mixture with full hydrodynamics in three dimensions. Contrary to some theoretical scenarios, a dynamical steady state is attained with finite correlation lengths in all…

统计力学 · 物理学 2009-11-13 K. Stratford , J. -C. Desplat , P. Stansell , M. E. Cates

We introduce a statistical system on random networks of trivalent vertices for the purpose of studying the canonical tensor model, which is a rank-three tensor model in the canonical formalism. The partition function of the statistical…

高能物理 - 理论 · 物理学 2014-05-07 Naoki Sasakura , Yuki Sato

For any D-dimensional quantum lattice system, the fidelity between two ground state many-body wave functions is mapped onto the partition function of a D-dimensional classical statistical vertex lattice model with the same lattice geometry.…

统计力学 · 物理学 2008-03-03 Huan-Qiang Zhou , Roman Orus , Guifre Vidal

We consider linear stability of steady states of 1(1/2) and 3D Vlasov-Maxwell systems for collisionless plasmas. The linearized systems can be written as separable Hamiltonian systems with constraints. By using a general theory for…

偏微分方程分析 · 数学 2021-07-28 Zhiwu Lin

A thermodynamically consistent particle-based model for fluid dynamics with continuous velocities and a non-ideal equation of state is presented. Excluded volume interactions are modeled by means of biased stochastic multiparticle…

软凝聚态物质 · 物理学 2009-11-11 Thomas Ihle , Erkan Tuzel , Daniel M. Kroll

State-space models have been successfully used for more than fifty years in different areas of science and engineering. We present a procedure for efficient variational Bayesian learning of nonlinear state-space models based on sparse…

机器学习 · 计算机科学 2014-11-04 Roger Frigola , Yutian Chen , Carl E. Rasmussen

The n-vicinities method for approximate calculations of the partition function of a spin system was proposed previously. The equation of state was obtained in the most general form. In the present publication these results are adapted to…

无序系统与神经网络 · 物理学 2016-06-30 Boris Kryzhanovsky , Leonid Litinskii

In this paper, we introduce a data-driven modeling approach for dynamics problems with latent variables. The state-space of the proposed model includes artificial latent variables, in addition to observed variables that can be fitted to a…

最优化与控制 · 数学 2024-06-19 Yushuang Luo , Xiantao Li , Wenrui Hao

In the first part of this paper, uniqueness of strong solution is established for the Vlasov-unsteady Stokes problem in 3D. The second part deals with a semi discrete scheme, which is based on the coupling of discontinuous Galerkin…

数值分析 · 数学 2024-12-17 Harsha Hutridurga , Krishan Kumar , Amiya K. Pani

We introduce three models of fragmentation in which the largest fragment in the system can be broken at each time step with a fixed probability, p. We solve these models exactly in the long time limit to reveal stable time invariant…

凝聚态物理 · 物理学 2015-06-25 G J Rodgers , M K Hassan

We study the problem of finding solutions to the stable matching problem that are robust to errors in the input and we obtain a polynomial time algorithm for a special class of errors. In the process, we also initiate work on a new…

数据结构与算法 · 计算机科学 2018-12-17 Tung Mai , Vijay V. Vazirani

This paper deals with iteration stable (STIT) tessellations, and, more generally, with a certain class of tessellations that are infinitely divisible with respect to iteration. They form a new, rich and flexible class of spatio-temporal…

概率论 · 数学 2013-03-04 Tomasz Schreiber , Christoph Thaele

This paper develops an inferential theory for state-varying factor models of large dimensions. Unlike constant factor models, loadings are general functions of some recurrent state process. We develop an estimator for the latent factors and…

计量经济学 · 经济学 2020-10-20 Markus Pelger , Ruoxuan Xiong

The surface states in three-dimensional (3D) topological insulators (TIs) can be described by a two-dimensional (2D) continuous Dirac Hamiltonian. However, there exists the Fermion doubling problem when putting the continuous 2D Dirac…

介观与纳米尺度物理 · 物理学 2017-07-05 Yan-Feng Zhou , Hua Jiang , X. C. Xie , Qing-Feng Sun

The three-dimensional elastic-plastic deformation is considered. The catastrophe theory underlies the construction of this process model. It was shown that the variety of stable states consists on elastic states and can be depicted as a…

材料科学 · 物理学 2007-05-23 L. N. Maurin , I. S. Tikhomirova

This paper aims to provide various applications for second-order variational analysis of extended-real-valued piecewise liner functions recently obtained in [1]. We mainly focus here on establishing relationships between full stability of…

最优化与控制 · 数学 2016-08-23 B. S. Mordukhovich , M. E. Sarabi

In this paper will be presented methodology of encoding information in valuations of discrete lattice with some translational invariant constrains in asymptotically optimal way. The method is based on finding statistical description of such…

信息论 · 计算机科学 2008-11-02 Jarek Duda

In this work, we consider the coupled systems of linear unsteady partial differential equations, which arise in the modeling of poroelasticity processes. Stability estimates of weighted difference schemes for the coupled system of equations…

数值分析 · 计算机科学 2013-11-18 A. E. Kolesov , P. N. Vabishchevich , M. V. Vasilyeva

We investigate the Kramers-Wannier approximation for the three-dimensional (3D) Ising model. The variational state is represented by an effective 2D Ising model, which contains two variational parameters. We numerically calculate the…

统计力学 · 物理学 2007-05-23 Kouichi Okunishi , Tomotoshi Nishino

We apply an improved Taylor expansion method, which is a variational scheme to the Ising model in two dimensions. This method enables us to evaluate the free energy and magnetization in strong coupling regions from the weak coupling…

高能物理 - 理论 · 物理学 2009-11-11 T. Aoyama , T. Matsuo , Y. Shibusa