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Passive random walker dynamics is introduced on a growing surface. The walker is designed to drift upward or downward and then follow specific topological features, such as hill tops or valley bottoms, of the fluctuating surface. The…

统计力学 · 物理学 2009-11-07 Chen-Shan Chin

We investigate the infinite-dimensional limit of nonequilibrium surface growth by numerically integrating stochastic growth equations on a fully connected graph. In particular, we study the Edwards-Wilkinson (EW), Kardar-Parisi-Zhang (KPZ),…

统计力学 · 物理学 2026-03-04 J. M. Marcos , J. J. Meléndez , R. Cuerno , J. J. Ruiz-Lorenzo

We discuss the methods to calculate the roughness exponent alpha and the dynamic exponent z from the scaling properties of the local roughness, which is frequently used in the analysis of experimental data. Through numerical simulations, we…

统计力学 · 物理学 2009-11-10 Anna Chame , F. D. A. Aarão Reis

This work considers the behavior of the height distributions of the equipotential lines in a region confined by two interfaces: a cathode with an irregular interface and a distant flat anode. Both boundaries, which are maintained at…

计算物理 · 物理学 2014-10-08 C. P. de Castro , T. A. de Assis , C. M. C. de Castilho , R. F. S. Andrade

Obtaining the exact multi-time correlations for one-dimensional growth models described by the Kardar-Parisi-Zhang (KPZ) universality class is presently an outstanding open problem. Here, we study the joint probability distribution function…

统计力学 · 物理学 2017-07-05 Jacopo de Nardis , Pierre Le Doussal

We explore the Kardar-Parisi-Zhang (KPZ) scaling in the one-dimensional Hubbard model, which exhibits global $SU_c(2)\otimes SU_s(2)$ symmetry at half-filling, for the pseudo-charge and the total spin. We analyze dynamical scaling…

强关联电子 · 物理学 2023-12-14 Cătălin Paşcu Moca , Miklós Antal Werner , Angelo Valli , Gergely Zaránd , Tomaž Prosen

Burgers-Kardar-Parisi-Zhang (KPZ) scaling has recently (re-) surfaced in a variety of physical contexts, ranging from anharmonic chains to quantum systems such as open superfluids, in which a variety of random forces may be encountered…

统计力学 · 物理学 2015-03-24 Philipp Strack

The surface exponents, the scaling behavior and the bulk porosity of a generalized ballistic deposition (GBD) model are studied. In nature, there exist particles with varying degrees of stickiness ranging from completely non-sticky to fully…

统计力学 · 物理学 2016-02-24 Baisakhi Mal , Subhankar Ray , J. Shamanna

The total elastic stiffness of two contacting bodies with a microscopically rough interface has an interfacial contribution K that is entirely attributable to surface roughness. A quantitative understanding of K is important because it can…

软凝聚态物质 · 物理学 2013-07-30 Lars Pastewka , Nikolay Prodanov , Boris Lorenz , Martin H. Müser , Mark O. Robbins , Bo N. J. Persson

We perform large scale simulations of a two dimensional lattice model for amorphous plasticity with random local yield stresses and long-range quadrupolar elastic interactions. We show that as the external stress increases towards the…

软凝聚态物质 · 物理学 2013-12-12 Zoe Budrikis , Stefano Zapperi

For stochastic growth models in the Kardar-Parisi-Zhang (KPZ) class in 1+1 dimensions, fluctuations grow as t^{1/3} during time t and the correlation length at a fixed time scales as t^{2/3}. In this note we discuss the scale of time…

数学物理 · 物理学 2008-11-01 Patrik L. Ferrari

We report on the universality of height fluctuations at the crossing point of two interacting (1+1)-dimensional Kardar-Parisi-Zhang (KPZ) interfaces with curved and flat initial conditions. We introduce a control parameter p as the…

统计力学 · 物理学 2019-02-15 Abbas Ali Saberi , Hor Dashti-N. , Joachim Krug

The Edwards-Wilkinson (EW) growth of $1+1$ interface is considered in the background of the correlated random noise. We use random Coulomb potential as the background long-range correlated noise. A depinning transition is observed in a…

统计力学 · 物理学 2021-05-20 N. Valizadeh , M. Samadpour , H. Hamzehpour , M. N. Najafi

The one-point distribution of the height for the continuum Kardar-Parisi-Zhang (KPZ) equation is determined numerically using the mapping to the directed polymer in a random potential at high temperature. Using an importance sampling…

无序系统与神经网络 · 物理学 2018-05-24 Alexander K. Hartmann , Pierre Le Doussal , Satya N. Majumdar , Alberto Rosso , Gregory Schehr

To investigate universal behavior and effects of long-range temporal correlations in kinetic roughening, we perform extensive simulations on the Kardar-Parisi-Zhang (KPZ) equation with temporally correlated noise based on pseudospectral…

统计力学 · 物理学 2023-04-18 Xiongpeng Hu , Dapeng Hao , Hui Xia

We present a finite-size scaling analysis of the droplet condensation-evaporation transition of a lattice gas (in two and three dimensions) and a Lennard-Jones gas (in three dimensions) at fixed density. Parallel multicanonical simulations…

软凝聚态物质 · 物理学 2015-08-04 Johannes Zierenberg , Wolfhard Janke

We study effects of turbulent mixing on the random growth of an interface in the problem of the deposition of a substance on a substrate. The growth is modelled by the well-known Kardar--Parisi--Zhang model. The turbulent advecting velocity…

统计力学 · 物理学 2015-11-06 N. V. Antonov , P. I. Kakin

We introduce a new method based on cellular automata dynamics to study stochastic growth equations. The method defines an interface growth process which depends on height differences between neighbors. The growth rule assigns a probability…

统计力学 · 物理学 2009-06-16 T. G. Mattos , J. G. Moreira , A. P. F. Atman

We have studied the kinetic roughening behavior of the fronts of coffee-ring aggregates via extensive numerical simulations of the off-lattice model considered for this context in [C.\ S.\ Dias {\it et al.}, Soft Matter {\bf 14}, 1903…

软凝聚态物质 · 物理学 2022-10-12 B. G. Barreales , J. J. Melendez , R. Cuerno , J. J. Ruiz-Lorenzo

We study numerically finite-size corrections in scaling relations for roughness distributions of various interface growth models. The most common relation, which considers the average roughness $<w_2>$ as scaling factor, is not obeyed in…

统计力学 · 物理学 2009-11-13 T. J. Oliveira , F. D. A. Aarao Reis