Results 31 to 40 of about 17,177,934 (283)
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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Time averages in continuous-time random walks [PDF]
Physical Review E, 2017 6 pages, 2 ...
Thiel, Felix, Sokolov, Igor M.
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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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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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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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Mathematics, 2021 It has been increasingly reported that in biological tissues diffusion-weighted MRI signal attenuation deviates from mono-exponential decay, especially at high b-values.
Guangyu Dan +7 more
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Individuals at the origin in the critical catalytic branching random walk [PDF]
Discrete Mathematics & Theoretical Computer Science, 2003 A continuous time branching random walk on the lattice $\mathbb{Z}$ is considered in which individuals may produce children at the origin only. Assuming that the underlying random walk is symmetric and the offspring reproduction law is critical we prove ...
Valentin Topchii, Vladimir Vatutin
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New Journal of Physics, 2020 We consider the emerging dynamics of a separable continuous time random walk (CTRW) in the case when the random walker is biased by a velocity field in a uniformly growing domain.
F Le Vot, E Abad, R Metzler, S B Yuste
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