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相关论文: Scaling limit for trap models on $\mathbb{Z}^d$

200 篇论文

Noise-induced escape from a metastable state of a dynamical system is studied close to a saddle-node bifurcation point, but in the region where the system remains underdamped. The activation energy of escape scales as a power of the…

介观与纳米尺度物理 · 物理学 2009-11-11 M. I. Dykman , I. B. Schwartz , M. Shapiro

We elucidate the effects of chiral quenched disorder on the scaling properties of pure systems by considering a reduced model that is a variant of the quenched disordered cubic anisotropic O(N) model near its second order phase transition.…

统计力学 · 物理学 2015-06-15 Niladri Sarkar , Abhik Basu

We study a spatial branching model, where the underlying motion is $d$-dimensional ($d\ge1$) Brownian motion and the branching rate is affected by a random collection of reproduction suppressing sets dubbed mild obstacles. The main result…

概率论 · 数学 2008-12-18 János Engländer

We show that for a d-dimensional model in which a quench with a rate \tau^{-1} takes the system across a d-m dimensional critical surface, the defect density scales as n \sim 1/\tau^{m\nu/(z\nu +1)}, where \nu and z are the correlation…

统计力学 · 物理学 2009-11-13 K. Sengupta , Diptiman Sen , Shreyoshi Mondal

We consider discrete Gaussian free fields with ergodic random conductances on a class of random subgraphs of $\mathbb{Z}^{d}$, $d \geq 2$, including i.i.d.\ supercritical percolation clusters, where the conductances are possibly unbounded…

概率论 · 数学 2025-08-26 Sebastian Andres , Martin Slowik , Anna-Lisa Sokol

This paper explores the continuous-time limit of a class of Quasi Score-Driven (QSD) models that characterize volatility. As the sampling frequency increases and the time interval tends to zero, the model weakly converges to a…

概率论 · 数学 2025-06-06 Yinhao Wu , Ping He

In this paper we study Markov chains with the state space given by the coordinate axes of $\mathbb R^m$, $m \geq 2$, whose step sizes on each positive half-axis are distributed according to a centered probability distribution with variance…

概率论 · 数学 2026-01-21 Ilya Pavlyukevich , Andrey Pilipenko

We consider critical multitype Bienaym\'e trees that are either irreducible or possess a critical irreducible component with attached subcritical components. These trees are studied under two distinct conditioning frameworks: first,…

We consider a 2-dimensional model of random walk in random environment known as line model. The environment is described by two independent families of i.i.d. random variables dictating rates of jumps in vertical, respectively horizontal…

概率论 · 数学 2025-12-25 Jean-Dominique Deuschel , Henri Elad Altman

We are interested in the branching capacity of the range of a random walk in $\mathbb Z^d$.Schapira [28] has recently obtained precise asymptotics in the case $d\ge 6$ and has demonstrated a transition at dimension $d=6$. We study the case…

概率论 · 数学 2024-05-01 Tianyi Bai , Jean-François Delmas , Yueyun Hu

We study the limit fluctuations of the rescaled occupation time process of a branching particle system in $\mathbb{R}^d$, where the particles are subject to symmetric $\alpha$-stable migration ($0<\alpha\leq2$), critical binary branching,…

We study the dynamical response of a system to a sudden change of the tuning parameter $\lambda$ starting (or ending) at the quantum critical point. In particular we analyze the scaling of the excitation probability, number of excited…

统计力学 · 物理学 2010-01-20 C. De Grandi , V. Gritsev , A. Polkovnikov

We work out the effective scaling approach to frictionless quantum quenches in a one-dimensional Bose gas trapped in a harmonic trap. The effective scaling approach produces an auxiliary equation for the scaling parameter interpolating…

量子气体 · 物理学 2024-06-11 Tang-You Huang , Michele Modugno , Xi Chen

We consider a class of continuous-time stochastic growth models on $d$-dimensional lattice with non-negative real numbers as possible values per site. We remark that the diffusive scaling limit proven in our previous work [Nagahata, Y.,…

概率论 · 数学 2010-09-14 Yukio Nagahata , Nobuo Yoshida

We consider a system of infinitely many interacting Brownian motions that models the height of a one-dimensional interface between two bulk phases. We prove that the large scale fluctuations of the system are well approximated by the…

概率论 · 数学 2017-08-02 Joscha Diehl , Massimiliano Gubinelli , Nicolas Perkowski

We are interested in the cycles obtained by slicing at all heights random Boltzmann triangulations with a simple boundary. We establish a functional invariance principle for the lengths of these cycles, appropriately rescaled, as the size…

概率论 · 数学 2018-02-19 Jean Bertoin , Nicolas Curien , Igor Kortchemski

We are concerned with scaling limits of the solutions to stochastic differential equations with stationary coefficients driven by Poisson random measures and Brownian motions. We state an annealed convergence theorem, in which the limit…

概率论 · 数学 2008-12-26 Remi Rhodes , Vincent Vargas

We propose a lattice model for Dirac fermions which allows us to break the degeneracy of the node structure. In the presence of a random gap we analyze the scaling behavior of the localization length as a function of the system width within…

无序系统与神经网络 · 物理学 2014-12-23 A. Hill , K. Ziegler

Functional limit theorems are presented for the rescaled occupation time fluctuations process of a critical finite variance branching particle system in $R^d$ with symmetric a-stable motion starting off from either a standard Poisson random…

概率论 · 数学 2009-11-04 Piotr Milos

In this article we study the scaling limit of the interface model on $\mathbb{Z}^d$ where the Hamiltonian is given by a mixed gradient and Laplacian interaction. We show that in any dimension the scaling limit is given by the Gaussian free…

概率论 · 数学 2020-05-05 Alessandra Cipriani , Biltu Dan , Rajat Subhra Hazra