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The multifractal behavior of the normalized first passage time is investigated on the two dimensional Sierpinski gasket with both absorbing and reflecting barriers. The normalized first passage time for Sinai model and the logistic model to…

统计力学 · 物理学 2009-10-31 Kyungsik Kim , J. S. Choi , Y. S. Kong

We investigate chaotic and multi-fractal properties of a two parameter map of the unit interval onto itself -- the Kim-Kong map. These results are compared with similar properties in well known one parameter maps of the unit interval onto…

统计力学 · 物理学 2007-05-23 Kyungsik Kim , B. O. Shim , Y. S. Kong , B. I. Henry , M. K. Yum

We investigate the multifractals of the normalized first passage time on one-dimensional small-world network with both reflecting and absorbing barriers. The multifractals is estimated from the distribution of the normalized first passage…

统计力学 · 物理学 2007-05-23 Kyungsik Kim , K. H. Chang , S. M. Yoon , C. Christopher Lee , J. S. Choi

We study multifractal properties in time evolution of a single particle subject to repeated measurements. For quantum systems, we consider circuit models consisting of local unitary gates and local projective measurements. For classical…

量子物理 · 物理学 2024-10-28 Kohei Yajima , Hisanori Oshima , Ken Mochizuki , Yohei Fuji

We study the first passage statistics to adsorbing boundaries of a Brownian motion in bounded two-dimensional domains of different shapes and configurations of the adsorbing and reflecting boundaries. From extensive numerical analysis we…

统计力学 · 物理学 2013-05-30 Thiago G. Mattos , Carlos Mejía-Monasterio , Ralf Metzler , Gleb S. Oshanin

The multifractal characterization of the distribution over disorder of the mean first-passage time in a finite chain is revisited. Both, absorbing-absorbing and reflecting-absorbing boundaries are considered. Two models of dichotomic…

统计力学 · 物理学 2009-11-10 Pedro A. Pury , Manuel O. Caceres

We study the statistics of the first passage of a random walker to absorbing subsets of the boundary of compact domains in different spatial dimensions. We describe a novel diagnostic method to quantify the trajectory-to-trajectory…

统计力学 · 物理学 2013-05-06 T. G. Mattos , C. Mejía-Monasterio , R. Metzler , G. Oshanin , G. Schehr

The method of iterated conformal maps allows to study the harmonic measure of Diffusion Limited Aggregates with unprecedented accuracy. We employ this method to explore the multifractal properties of the measure, including the scaling of…

统计力学 · 物理学 2009-11-07 Mogens H. Jensen , Anders Levermann , Joachim Mathiesen , Itamar Procaccia

We consider the problem of determining the arrival statistics of unbiased planar random walkers to complex target configurations. In contrast to problems posed in finite domains, simple moments of the distribution, such as the mean (MFPT)…

数值分析 · 数学 2021-12-14 Jake Cherry , Alan E. Lindsay , Adrian Navarro Hernandez , Bryan Quaife

In this paper, we present an iterative method to quickly traverse multi-dimensional paths considering jerk constraints. As a first step, we analyze the traversal of each individual path dimension. We derive a range of feasible target…

机器人学 · 计算机科学 2024-07-19 Jonas C. Kiemel , Torsten Kröger

The study of first passage times for diffusing particles reaching target states is foundational in various practical applications, including diffusion-controlled reactions. In this work, we present a bi-scaling theory for the probability…

统计力学 · 物理学 2025-03-21 Talia Baravi , David A. Kessler , Eli Barkai

We study a quantum walk of a single particle that is subject to stroboscopic projective measurements on a graph with two sites. This two-level system is the minimal model of a measurement induced quantum walk. The mean first detected…

量子物理 · 物理学 2023-09-06 Sabine Tornow , Klaus Ziegler

We analyze invariant measures of two coupled piecewise linear and everywhere expanding maps on the synchronization manifold. We observe that though the individual maps have simple and smooth functions as their stationary densities, they…

混沌动力学 · 物理学 2017-08-11 Deepak Jalla , Kiran M. Kolwankar

The quantum first-detection problem concerns the statistics of the time at which a system, subject to repeated measurements, is observed in a prescribed target state for the first time. Unlike its classical counterpart, the measurement back…

统计力学 · 物理学 2026-01-21 Giovanni Di Fresco , Aldo Coraggio , Alessandro Silva , Andrea Gambassi

We derive an approximate formula for the mean first-passage time (MFPT) to a small absorbing target of arbitrary shape inside an elongated domain of a slowly varying axisymmetric profile. For this purpose, the original Poisson equation in…

化学物理 · 物理学 2022-05-06 Denis S. Grebenkov , Alexei T. Skvortsov

The first passage is a generic concept for quantifying when a random quantity such as the position of a diffusing molecule or the value of a stock crosses a preset threshold (target) for the first time. The last decade saw an enlightening…

统计力学 · 物理学 2016-09-26 Aljaz Godec , Ralf Metzler

We investigate a tight binding quantum walk on a graph. Repeated stroboscopic measurements of the position of the particle yield a measured "trajectory", and a combination of classical and quantum mechanical properties for the walk are…

统计力学 · 物理学 2022-05-18 A. Didi , E. Barkai

We discuss the Heisenberg limit in the multiparameter metrology within two different paradigms -- the one, where the measurement is repeated many times (so the Cram\'er-Rao bound is guaranteed to be asymptotically saturable) and the second…

量子物理 · 物理学 2022-09-16 Wojciech Górecki , Rafał Demkowicz-Dobrzański

We provide an explicit formula for the global mean first-passage time (GMFPT) for random walks in a general graph with a perfect trap fixed at an arbitrary node, where GMFPT is the average of mean first-passage time to the trap over all…

统计力学 · 物理学 2012-09-28 Yuan Lin , Alafate Julaiti , Zhongzhi Zhang

We study the crossing time statistic of diffusing point particles between the two ends of expanding and narrowing two-dimensional conical channels under a transverse external gravitational field. The theoretical expression for the mean…

统计力学 · 物理学 2023-01-11 Ivan Pompa-Garcia , Rodrigo Castilla , Ralf Metzler , Leonardo Dagdug
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