Results 11 to 20 of about 347,779 (278)

Large Deviations for Continuous Time Random Walks [PDF]

open access: yesEntropy, 2020
Recently observation of random walks in complex environments like the cell and other glassy systems revealed that the spreading of particles, at its tails, follows a spatial exponential decay instead of the canonical Gaussian.
Wanli Wang, Eli Barkai, Stanislav Burov
doaj   +4 more sources

Record Statistics of Continuous Time Random Walk [PDF]

open access: yesEPL (Europhysics Letters), 2011
The statistics of records for a time series generated by a continuous time random walk is studied, and found to be independent of the details of the jump length distribution, as long as the latter is continuous and symmetric.
Sabhapandit, Sanjib
core   +3 more sources

Continuous Time Random Walks (CTRWs): Simulation of continuous trajectories [PDF]

open access: yesPhysical Review E, 2007
Continuous time random walks have been developed as a straightforward generalisation of classical random walk processes. Some 10 years ago, Fogedby introduced a continuous representation of these processes by means of a set of Langevin equations [H.
Friedrich, R., Kleinhans, D.
core   +3 more sources

Directed Continuous-Time Random Walk with memory [PDF]

open access: yesThe European Physical Journal B, 2018
We propose a new Directed Continuous-Time Random Walk (CTRW) model with memory. As CTRW trajectory consists of spatial jumps preceded by waiting times, in Directed CTRW, we consider the case with only positive spatial jumps.
Gubiec, Tomasz, Klamut, Jarosław
core   +2 more sources

A continuous time random walk model for financial distributions [PDF]

open access: yesPhysical Review E, 2002
We apply the formalism of the continuous time random walk to the study of financial data. The entire distribution of prices can be obtained once two auxiliary densities are known.
A.H. Gandjbakhche   +23 more
core   +6 more sources

Noisy continuous time random walks [PDF]

open access: yesThe Journal of Chemical Physics, 2013
Experimental studies of the diffusion of biomolecules in the environment of biological cells are routinely confronted with multiple sources of stochasticity, whose identification renders the detailed data analysis of single molecule trajectories quite ...
Barkai, Eli   +2 more
core   +3 more sources

State‐switching continuous‐time correlated random walks [PDF]

open access: yesMethods in Ecology and Evolution, 2019
Abstract Continuous‐time models have been developed to capture features of animal movement across temporal scales. In particular, one popular model is the continuous‐time correlated random walk, in which the velocity of an animal is formulated as an Ornstein–Uhlenbeck process, to capture the autocorrelation in the speed and direction of its movement.
Michelot, T., Blackwell, P.G.
openaire   +8 more sources

From quenched disorder to continuous time random walk [PDF]

open access: yesPhysical Review E, 2017
This work focuses on quantitative representation of transport in systems with quenched disorder. Explicit mapping of the quenched trap model to continuous time random walk is presented. Linear temporal transformation: $t\to t/ ^{1/ }$ for transient process on translationally invariant lattice, in the sub-diffusive regime, is sufficient for asymptotic
Stanislav Burov
openaire   +5 more sources

Continuous time random walk and parametric subordination in fractional diffusion

open access: yesChaos, Solitons and Fractals, 2007
The well-scaled transition to the diffusion limit in the framework of the theory of continuous-time random walk (CTRW)is presented starting from its representation as an infinite series that points out the subordinated character of the CTRW itself.
Alessandro Vivoli   +62 more
core   +6 more sources

Integro-differential diffusion equation for continuous time random walk [PDF]

open access: yesPhysical Review E, 2010
In this paper we present an integro-differential diffusion equation for continuous time random walk that is valid for a generic waiting time probability density function.
A. Carpinteri   +5 more
core   +3 more sources

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