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While classical percolation is well understood, percolation effects in randomly packed or jammed structures are much less explored. Here we investigate both experimentally and theoretically the electrical percolation in a binary composite…

材料科学 · 物理学 2021-04-20 Shiva Pokhrel , Brendon Waters , Solveig Felton , Zhi-Feng Huang , Boris Nadgorny

Using Monte Carlo simulation, we studied the percolation of sticks, i.e. zero-width rods, on a plane paying special attention to the effects of stick alignment and their length dispersity. The stick lengths were distributed in accordance…

统计力学 · 物理学 2019-01-02 Yuri Yu. Tarasevich , Andrei V. Eserkepov

This paper presents a Monte-Carlo study of percolation in a distorted square lattice, in which, the adjacent sites are not equidistant. Starting with an undistorted lattice, the position of the lattice sites are shifted through a tunable…

统计力学 · 物理学 2019-01-16 Sayantan Mitra , Dipa Saha , Ankur Sensharma

We study, on a square lattice, an extension to fully coordinated percolation which we call iterated fully coordinated percolation. In fully coordinated percolation, sites become occupied if all four of its nearest neighbors are also…

统计力学 · 物理学 2007-05-23 E. Cuansing , H. Nakanishi

In the presented article, statistical properties regarding the topology and standard percolation on relative neighborhood graphs (RNGs) for planar sets of points, considering the Euclidean metric, are put under scrutiny. RNGs belong to the…

统计力学 · 物理学 2013-04-17 O. Melchert

We summarize several decades of work in finding values for the percolation threshold p_c for site percolation on the square lattice, the universal correction-to-scaling exponent Omega, and the susceptibility amplitude ratio C^+/C^-, in two…

无序系统与神经网络 · 物理学 2015-03-19 Robert M. Ziff

The problem of continuum percolation in dispersions of rods is reformulated in terms of weighted random geometric graphs. Nodes (or sites or vertices) in the graph represent spatial locations occupied by the centers of the rods. The…

统计力学 · 物理学 2015-09-30 Avik P. Chatterjee , Claudio Grimaldi

This topical review describes the methodology of continuum variational and diffusion quantum Monte Carlo calculations. These stochastic methods are based on many-body wave functions and are capable of achieving very high accuracy. The…

材料科学 · 物理学 2010-02-11 R. J. Needs , M. D. Towler , N. D. Drummond , P. Lopez Rios

Rigidity Percolation is a crucial framework for describing rigidity transitions in amorphous systems. We present a new, efficient algorithm to study central-force Rigidity Percolation in two dimensions. This algorithm combines the Pebble…

软凝聚态物质 · 物理学 2026-02-12 Nina Javerzat , Daniele Notarmuzi

We investigate geometric percolation and scaling relations in suspensions of nanorods, covering the entire range of aspect ratios from spheres to extremely slender needles. A new version of connectedness percolation theory is introduced and…

软凝聚态物质 · 物理学 2015-09-30 Tanja Schilling , Mark Miller , Paul van der Schoot

We review the basic outline of the highly successful diffusion Monte Carlo technique commonly used in contexts ranging from electronic structure calculations to rare event simulation and data assimilation, and propose a new class of…

数值分析 · 数学 2017-10-10 Lek-Heng Lim , Jonathan Weare

We offer a new proposal for the Monte Carlo treatment of many-fermion systems in continuous space. It is based upon Diffusion Monte Carlo with significant modifications: correlated pairs of random walkers that carry opposite signs;…

凝聚态物理 · 物理学 2009-10-31 M. H. Kalos , Francesco Pederiva

The divergence of the correlation length $\xi$ at criticality is an important phenomenon of percolation in two-dimensional systems. Substantial speed-ups to the calculation of the percolation threshold and component distribution have been…

物理与社会 · 物理学 2020-01-22 Michael M. Danziger , Bnaya Gross , Sergey V. Buldyrev

A high-accuracy solution of the diffraction problem has become necessary for the treatment of certain special questions of statistical physics. This article reports the creation of a computer program that serves as an instrumental method of…

光学 · 物理学 2013-08-30 Vladimir V. Savukov , Igor V. Golubenko

Percolation in systems made up of randomly placed impermeable grains is often examined in the context of system spanning clusters of connected solids forming above a relatively low critical grain density $\rho_{c1}$ or networks of…

无序系统与神经网络 · 物理学 2025-10-10 D. J. Priour

The fractal structure of directed percolation clusters, grown at the percolation threshold inside parabolic-like systems, is studied in two dimensions via Monte Carlo simulations. With a free surface at y=\pm Cx^k and a dynamical exponent…

统计力学 · 物理学 2009-10-22 C. Kaiser , L. Turban

Statistical evidence of the influence of neighborhood topology on the performance of particle swarm optimization (PSO) algorithms has been shown in many works. However, little has been done about the implications could have the percolation…

人工智能 · 计算机科学 2012-04-18 Blanca Cases , Alicia D'Anjou , Abdelmalik Moujahid

Percolation phenomena of homopolymer brushes on a planar substrate are simulated using the molecular Monte Carlo method in 3 dimensions. The grafted polymers are isolated from each other at extremely low grafting density, whereas a…

软凝聚态物质 · 物理学 2014-02-07 Yuki Norizoe , Hiroshi Jinnai , Atsushi Takahara

We determine thresholds $p_c$ for random site percolation on a triangular lattice for neighbourhoods containing nearest (NN), next-nearest (2NN), next-next-nearest (3NN), next-next-next-nearest (4NN) and next-next-next-next-nearest (5NN)…

统计力学 · 物理学 2020-12-10 Krzysztof Malarz

A boundary-based net-exchange Monte Carlo method was introduced in [1] that allows to bypass the difficulties encountered by standard Monte Carlo algorithms in the limit of optically thick absorption (and/or for quasi-isothermal…

计算物理 · 物理学 2019-03-06 V. Eymet , R. Fournier , S. Blanco , J. L. Dufresne