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Travelling waves of densities of binary fluid mixtures are investigated near a critical point. The free energy is considered in a non-local form taking account of the density gradients. The equations of motions are applied to a universal…

经典物理 · 物理学 2011-10-26 Henri Gouin , Augusto Muracchini , Tommaso Ruggeri

We study thermodynamics properties of a one dimensional gas of hard elongated particles. The particle centers are restricted to a line, while they can rotate in two-dimensional space. Correlations between orientations of the objects are…

统计力学 · 物理学 2009-10-27 Yacov Kantor , Mehran Kardar

Packing density is a permutation occurrence statistic which describes the maximal number of permutations of a given type that can occur in another permutation. In this article we focus on containment of sets of permutations. Although this…

组合数学 · 数学 2007-05-23 Alexander Burstein , Peter Hästö

We study completely asymmetric 2-channel exclusion processes in 1 dimension. It describes a two-way traffic flow with cars moving in opposite directions. The interchannel interaction makes cars slow down in the vicinity of approaching cars…

统计力学 · 物理学 2008-11-26 H. -W. Lee , V. Popkov , D. Kim

The statistical distribution of the radial pairwise peculiar velocity of galaxies is known to have an exponential form as implied by observations and explicitly shown in N-body simulations. Here we calculate its statistical distribution…

天体物理学 · 物理学 2009-10-30 Naoki Seto , Jun'ichi Yokoyama

We follow the evolution with sample thickness, of intensity statistics for localized light transmitted through layered media in a crossover from one to three dimensions occasioned by transverse disorder. The probability distribution of…

无序系统与神经网络 · 物理学 2013-05-29 Jongchul Park , Sheng Zhang , Azriel Z. Genack

High resolution numerical simulations of stationary inverse energy cascade in two-dimensional turbulence are presented. Deviations from Gaussianity of velocity differences statistics are quantitatively investigated. The level of statistical…

chao-dyn · 物理学 2009-10-31 G. Boffetta , A. Celani , M. Vergassola

We study local features, and provide a topological insight into the global structure of the probability density distribution and of the pattern of the optimal paths for large rare fluctuations away from a stable state. In contrast to…

凝聚态物理 · 物理学 2009-10-22 Mark I. Dykman , Mark M. Millonas , Vadim N. Smelyanskiy

Jamming crossovers occur at zero temperature in assemblies of particles interacting via finite range repulsive potentials, when on increasing the density particles make contacts with those of subsequent coordination shells. Density…

软凝聚态物质 · 物理学 2013-09-03 Massimo Pica Ciamarra , Peter Sollich

Boundary driven diffusive systems describe a broad range of transport phenomena. We study large deviations of the density profile in these systems, using numerical and analytical methods. We find that the large deviation may be…

统计力学 · 物理学 2015-10-07 Guy Bunin , Yariv Kafri , Daniel Podolsky

We report on simulations of two-dimensional turbulence in the inverse energy cascade regime. Focusing on the statistics of Lagrangian tracer particles, scaling behavior of the probability density functions of velocity fluctuations is…

流体动力学 · 物理学 2009-11-13 Oliver Kamps , Rudolf Friedrich

A well-known question in planar first-passage percolation concerns the convergence of the empirical distribution of weights as seen along geodesics. We demonstrate this convergence for an explicit model, directed last-passage percolation on…

概率论 · 数学 2024-12-17 James B. Martin , Allan Sly , Lingfu Zhang

We study the statistical distribution of the closest encounter between observations computed along different trajectories of a mixing dynamical system. At the limit of large trajectories, the distribution is of Gumbel type and depends on…

动力系统 · 数学 2021-04-29 Théophile Caby

We present a simple model for the shape of the distribution function of galaxy peculiar velocities. We show how both nonlinear and linear theory terms combine to produce a distribution which has an approximately Gaussian core with…

天体物理学 · 物理学 2009-10-31 Ravi K. Sheth , Antonaldo Diaferio

We study the spatial patterns formed by a system of interacting particles where the mobility of any individual is determined by the population crowding at two different spatial scales. In this way we model the behavior of some biological…

We present an optimal mass transport framework on the space of Gaussian mixture models, which are widely used in statistical inference. Our method leads to a natural way to compare, interpolate and average Gaussian mixture models.…

概率论 · 数学 2018-02-01 Yongxin Chen , Tryphon T. Georgiou , Allen Tannenbaum

Relying on the excursion set theory, we compute the number density of local extrema and crossing statistics versus the threshold for the stock market indices. Comparing the number density of excursion sets calculated numerically with the…

统计金融 · 定量金融 2022-07-08 M. Shadmangohar , S. M. S. Movahed

Transport properties of a two-band system with spectral nodes are studied in the presence of random scattering. Starting from a Grassmann functional integral, we derive a bosonic representation that is based on random phase fluctuations.…

无序系统与神经网络 · 物理学 2015-01-22 K. Ziegler

We study the density of states and the optical conductivity of the classical double-exchange model on a site percolated cluster.

凝聚态物理 · 物理学 2007-05-23 A. Weiße , H. Fehske

We consider conservative cross-diffusion systems for two species where individual motion rates depend linearly on the local density of the other species. We develop duality estimates and obtain stability and approximation results. We first…

偏微分方程分析 · 数学 2024-10-30 Vincent Bansaye , Ayman Moussa , Felipe Muñoz-Hernández