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相关论文: Pattern densities in fluid dimer models

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The bispectrum vanishes for linear Gaussian fields and is thus a sensitive probe of non-linearities and non-Gaussianities in the cosmic density field. Hence, a detection of the bispectrum in the halo density field would enable tight…

宇宙学与河外天体物理 · 物理学 2011-08-18 Tobias Baldauf , Uros Seljak , Leonardo Senatore

We consider gradient models on the lattice $Z^d$. These models serve as effective models for interfaces and are also known as continuous Ising models. The height of the interface is modelled by a random field with an energy which is a…

数学物理 · 物理学 2020-07-22 Susanne Hilger

In a composite system of gravitationally coupled stellar and gaseous discs, we perform linear stability analysis for axisymmetric coplanar perturbations using the two-fluid formalism. The background stellar and gaseous discs are taken to be…

天体物理学 · 物理学 2014-10-13 Yue Shen , Yu-Qing Lou

In the dimer model, a configuration consists of a perfect matching of a fixed graph. If the underlying graph is planar and bipartite, such a configuration is associated to a height function. For appropriate "critical" (weighted) graphs,…

概率论 · 数学 2014-07-24 Julien Dubédat

We study a discrete-to-continuous Gamma-limit of a family of high-contrast double porosity type functionals defined on a scaled integer lattice. Under periodicity and p-growth conditions we prove the homogenization result and describe the…

泛函分析 · 数学 2014-06-09 Andrea Braides , Valeria Chiado Piat , Andrey Piatnitski

A new type of quasi-two-dimensional complex plasma system was observed which consisted of monodisperse microspheres and their binary agglomerations (dimers). The particles and their dimers levitated in a plasma sheath at slightly different…

等离子体物理 · 物理学 2016-05-25 M. Chaudhuri , I. Semenov , V. Nosenko , H. M. Thomas

We study the dimer and Ising models on a finite planar weighted graph with periodic-antiperiodic boundary conditions, i.e. a graph $\Gamma$ in the Klein bottle $K$. Let $\Gamma_{mn}$ denote the graph obtained by pasting $m$ rows and $n$…

数学物理 · 物理学 2022-05-26 David Cimasoni

After having introduced the notion of universality in statistical mechanics and its importance for our comprehension of the macroscopic behavior of interacting systems, I review recent progress in the understanding of the scaling limit of…

数学物理 · 物理学 2021-11-01 Alessandro Giuliani

Disagreement percolation connects a Gibbs lattice gas and i.i.d. site percolation on the same lattice such that non-percolation implies uniqueness of the Gibbs measure. This work generalises disagreement percolation to the hard-sphere model…

概率论 · 数学 2019-07-02 Christoph Hofer-Temmel

In this work we explore the one-dimensional extended Hubbard model as a fluid system modelling liquid phases of different densities. This model naturally displays two length scales of interaction, which are connected with waterlike…

统计力学 · 物理学 2023-10-10 Marco A. Habitzreuter , Eduardo O. Rizzatti , Marcia C. Barbosa

It is known that a linear hamiltonian system has too many invariant measures, thus the problem of convergence to Gibbs measure has no sense. We consider linear hamiltonian systems of arbitrary finite dimension and prove that, under the…

数学物理 · 物理学 2013-02-21 A. A. Lykov , V. A. Malyshev

We draw an analogy between droplet formation in dilute particle and polymer systems. Our arguments are based on finite-size scaling results from studies of a two-dimensional lattice gas to three-dimensional bead-spring polymers. To set the…

统计力学 · 物理学 2018-03-14 Wolfhard Janke , Johannes Zierenberg

We address semigroup well-posedness for a linear, compressible viscous fluid interacting at its boundary with an elastic plate. We derive the model by linearizing the compressible Navier-Stokes equations about an arbitrary flow state, so…

偏微分方程分析 · 数学 2018-08-17 George Avalos , Pelin Guven Geredeli , Justin T. Webster

Generalized Labeled Multi-Bernoulli (GLMB) densities arise in a host of multi-object system applications analogous to Gaussians in single-object filtering. However, computing the GLMB filtering density requires solving NP-hard problems. To…

机器学习 · 统计学 2023-12-29 Changbeom Shim , Ba-Tuong Vo , Ba-Ngu Vo , Jonah Ong , Diluka Moratuwage

This is the second paper in the series devoted to the study of the dimer model on t-embeddings of planar bipartite graphs. We introduce the notion of perfect t-embeddings and assume that the graphs of the associated origami maps converge to…

概率论 · 数学 2021-09-15 Dmitry Chelkak , Benoît Laslier , Marianna Russkikh

We present a new phase-field model for binary fluids exhibiting typical signatures of self-glassiness, such as long-time relaxation, ageing and long-term dynamical arrest. The present model allows the cost of building an interface to become…

统计力学 · 物理学 2015-05-20 R. Benzi , M. Sbragaglia , M. Bernaschi , S. Succi

A class of binary mixtures of Janus fluids formed by colloidal spheres with the hydrophobic hemispheres constrained to point either up or down are studied by means of Gibbs ensemble Monte Carlo simulations and simple analytical…

软凝聚态物质 · 物理学 2013-11-14 Riccardo Fantoni , Achille Giacometti , Miguel Ángel G. Maestre , Andrés Santos

We consider the set of bimodal linear systems consisting of two linear dynamics acting on each side of a given hyperplane, assuming continuity along the separating hyperplane. Focusing on the unobservable planar ones, we obtain a simple…

动力系统 · 数学 2012-01-04 Josep Ferrer , M. Dolors Magret , Juan R. Pacha , Marta Peña

The paper deals with planar segment processes given by a density with respect to the Poisson process. Parametric models involve reference distributions of directions and/or lengths of segments. These distributions generally do not coincide…

统计理论 · 数学 2017-08-30 Viktor Benes , Jakub Vecera , Milan Pultar

Using operator methods, we generally present the level densities for kinds of random matrix unitary ensembles in weak sense. As a corollary, the limit spectral distributions of random matrices from Gaussian, Laguerre and Jacobi unitary…

数学物理 · 物理学 2007-05-23 Zhengdong Wang , Kuihua Yan