Results 21 to 30 of about 17,135,752 (243)
Large deviations in continuous-time random walks [PDF]
Physical Review E, 2021 We discuss large deviation properties of continuous-time random walks (CTRW) and present a general expression for the large deviation rate in CTRW in terms of the corresponding rates for the distributions of steps' lengths and waiting times. In the case of Gaussian distribution of steps' lengths the general expression reduces to a sequence of two ...
Adrian Pacheco-Pozo, Igor M. Sokolov
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Evanescent continuous-time random walks [PDF]
Physical Review E, 2013 We study how an evanescence process affects the number of distinct sites visited by a continuous time random walker in one dimension. We distinguish two very different cases, namely, when evanescence can only occur concurrently with a jump, and when evanescence can occur at any time.
Abad, E. +2 more
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Heterogeneous continuous-time random walks [PDF]
Physical Review E, 2018 11 pages, 5 ...
Grebenkov, Denis S., Tupikina, Liubov
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Chemical Continuous Time Random Walks [PDF]
Physical Review Letters, 2017 12 pages, 2 figures, changed spelling of name of first ...
Tomás Aquino, Marco Dentz
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Nonindependent continuous-time random walks [PDF]
Physical Review E, 2007 The usual development of the continuous time random walk (CTRW) assumes that jumps and time intervals are a two-dimensional set of independent and identically distributed random variables. In this paper we address the theoretical setting of non-independent CTRW's where consecutive jumps and/or time intervals are correlated.
Montero Torralbo, Miquel +1 more
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Logarithmic speeds for one-dimensional perturbed random walk in random environment [PDF]
, 2008 We study the random walk in random environment on Z+ = f0; 1; 2; : : :g, where the environment is subject to a vanishing (random) perturbation. The two particular cases that we consider are: (i) random walk in random environment perturbed from Sinai's ...
Menshikov, M. V., Wade, Andrew R.
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Aging continuous time random walks [PDF]
The Journal of Chemical Physics, 2003 We investigate biased and nonbiased aging continuous time random walks (ACTRW), using fractal renewal theory. For example, a biased ACTRW process describes a Montroll–Weiss CTRW process which starts at time −ta and then at time t=0 a bias is added to the random walk (i.e., an external field is switched on).
Barkai, Eli, Cheng, Yuan-Chung
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Noisy continuous time random walks [PDF]
The Journal of Chemical Physics, 2013 Experimental studies of the diffusion of biomolecules within biological cells are routinely confronted with multiple sources of stochasticity, whose identification renders the detailed data analysis of single molecule trajectories quite intricate.
Jeon, Jae-Hyung +2 more
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Dephasing by a continuous-time random walk process [PDF]
Physical Review E, 2012 Stochastic treatments of magnetic resonance spectroscopy and optical spectroscopy require evaluations of functions like , where t is time, Q(s) is the value of a stochastic process at time s, and the angular brackets denote ensemble averaging. This paper gives an exact evaluation of these functions for the case where Q is a continuous-time random walk ...
Packwood, Daniel M, Tanimura, Yoshitaka
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Using approximate Bayesian inference for a “steps and turns” continuous-time random walk observed at regular time intervals [PDF]
PeerJ, 2020 The study of animal movement is challenging because movement is a process modulated by many factors acting at different spatial and temporal scales.
Sofia Ruiz-Suarez +3 more
doaj +2 more sources