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We discuss a parameter free scaling relation that yields a complete data collapse for large classes of nonequilibrium growth processes. We illustrate the power of this new scaling relation through various growth models, as for example the…

统计力学 · 物理学 2015-05-13 Yen-Liang Chou , Michel Pleimling

Family-Vicsek (FV) scaling provides an understanding for the growth and finite-size saturation of fluctuations in classical systems. Here, we extend the FV roughness to transferred segment magnetization after quantum quenches in a…

量子物理 · 物理学 2026-03-25 Cătălin Paşcu Moca , Doru Sticlet , Tamás Vicsek , Balázs Dóra

Data-collapse is a way of establishing scaling and extracting associated exponents in problems showing self-similar or self-affine characteristics as e.g. in equilibrium or non-equilibrium phase transitions, in critical phases, in dynamics…

软凝聚态物质 · 物理学 2009-11-07 Somendra M. Bhattacharjee , Flavio Seno

We present a unified view of finite-size scaling (FSS) in dimension d above the upper critical dimension, for both free and periodic boundary conditions. We find that the modified FSS proposed some time ago to allow for violation of…

统计力学 · 物理学 2015-01-07 Matthew Wittmann , A. P. Young

Fluctuations in the growing surfaces of classical systems can exhibit universal scaling behavior, known as Family-Vicsek (FV) scaling. Although this phenomenon was originally discovered in classical stochastic models, recent theoretical…

The investigation of the dynamical universality classes of quantum systems is an important, and rather less explored, aspect of non-equilibrium physics. In this work, considering the out-of-equilibrium dynamics of spinless fermions in a…

无序系统与神经网络 · 物理学 2024-02-14 Sreemayee Aditya , Nilanjan Roy

A finite size scaling theory, originally developed only for transitions to absorbing states [Phys. Rev. E {\bf 92}, 062126 (2015)], is extended to distinct sorts of discontinuous nonequilibrium phase transitions. Expressions for quantities…

统计力学 · 物理学 2018-06-13 Marcelo M. de Oliveira , M. G. E. da Luz , Carlos E. Fiore

Animal motion and flocking are ubiquitous nonequilibrium phenomena that are often studied within active matter. In examples such as insect swarms, macroscopic quantities exhibit power laws with measurable critical exponents and ideas from…

软凝聚态物质 · 物理学 2023-12-12 R. González-Albaladejo , L. L. Bonilla

We investigate the effect of incomplete information on the growth process of scale-free networks - a situation that occurs frequently e.g. in real existing citation networks. Two models are proposed and solved analytically for the scaling…

其他凝聚态物理 · 物理学 2007-05-23 K. Hamacher

Motivated by mapping from a stochastic system with spatially random rates, we consider disordered non-conserving free-fermion systems using a scaling procedure for the equations of motion. This approach demonstrates disorder-induced…

统计力学 · 物理学 2013-05-29 R. J. Harris , R. B. Stinchcombe

The dependence of the scaling properties of the structure factor on space dimensionality, range of interaction, initial and final conditions, presence or absence of a conservation law is analysed in the framework of the large-N model for…

凝聚态物理 · 物理学 2009-10-22 Antonio Coniglio , Patrizia Ruggiero , Marco Zannetti

We show that hyperscaling and finite-size scaling imply that the probability distribution of the order parameter in finite size critical systems exhibit data collapse. We consider the examples of equilibrium critical systems, and a…

统计力学 · 物理学 2009-10-31 Vivek Aji , Nigel Goldenfeld

We examine ways to write the Choptuik critical solution as the evolution of scale invariant variables. It is shown that a system of scale invariant variables proposed by one of the authors does not evolve periodically in the Choptuik…

广义相对论与量子宇宙学 · 物理学 2016-08-25 David Garfinkle , Ken Meyer

The Family-Vicsek relation is a seminal universal relation obtained for the global roughness at the interface of two media in the growth process. In this work, we revisit the scaling analysis and, through both analytical and computational…

We study the problem of parameter-free stochastic optimization, inquiring whether, and under what conditions, do fully parameter-free methods exist: these are methods that achieve convergence rates competitive with optimally tuned methods,…

机器学习 · 计算机科学 2024-10-22 Amit Attia , Tomer Koren

Based on the continuum model for granular media developed in Dunatunga et al. we propose a mesh-free generalized finite difference method for the simulation of granular flows. The model is given by an elasto-viscoplastic model with a yield…

数值分析 · 数学 2022-12-08 Sudarshan Tiwari , Axel Klar

The analysis of the radial distribution function of a system provides a possible procedure for uncovering interaction rules between individuals out of collective movement patterns. This approach from classical statistical mechanics has…

软凝聚态物质 · 物理学 2021-09-09 Javier Cristín , Vicenç Méndez , Daniel Campos

Parameter-free stochastic optimization aims to design algorithms that are agnostic to the underlying problem parameters while still achieving convergence rates competitive with optimally tuned methods. While some parameter-free methods do…

机器学习 · 计算机科学 2026-04-21 Yuheng Zhao , Yu-Hu Yan , Amit Attia , Tomer Koren , Lijun Zhang , Peng Zhao

A class of nucleation and growth models of a stable phase (S-phase) is investigated for various different growth velocities. It is shown that for growth velocities $v\sim s(t)/t$ and $v\sim x/\tau(x)$, where $s(t)$ and $\tau$ are the mean…

统计力学 · 物理学 2022-10-05 Amit Lahiri , Md. Kamrul Hassan , Bernd Blasius , Jürgen Kurths

We study the non-equilibrium dynamics of second-order phase transitions in a simplified Ginzburg-Landau model using the Fokker-Planck formalism. In particular, we focus on deriving the Kibble-Zurek scaling laws that dictate the dependence…

统计力学 · 物理学 2017-04-20 Ricardo Puebla , Ramil Nigmatullin , Tanja E. Mehlstäubler , Martin. B. Plenio
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