Continuous Time Random Walks (CTRWs): Simulation of continuous trajectories
arXiv:0707.3221 · doi:10.1103/PhysRevE.76.061102
Abstract
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. C. Fogedby, Phys. Rev. E 50 (1994)]. The present work is devoted to a detailed discussion of Fogedby's model and presents its application for the robust numerical generation of sample paths of continuous time random walk processes.
7 pages, 7 figures
References in corpus (7)
- Langevin equations for continuous time Lévy flights
- Continuous time random walk and parametric subordination in fractional diffusion
- Fractional Fokker-Planck dynamics: Numerical algorithm and simulations
- Levy-stable distributions revisited: tail index > 2 does not exclude the Levy-stable regime
- Joint Probability Distributions for a Class of Non-Markovian Processes
- A fractional diffusion equation for two-point probability distributions of a continuous-time random walk
- Multi-point Distribution Function for the Continuous Time Random Walk
Cited by in corpus (24)
- Brownian yet non-Gaussian diffusion: from superstatistics to subordination of diffusing diffusivities
- From non-Brownian Functionals to a Fractional Schrödinger Equation
- On distributions of functionals of anomalous diffusion paths
- Continuous time random walk with correlated waiting times
- Weakly non-ergodic Statistical Physics
- Non-Markovian diffusion equations and processes: analysis and simulations
- On relation between generalized diffusion equations and subordination schemes
- Subordination Pathways to Fractional Diffusion
- Anomalous processes with general waiting times: functionals and multi-point structure
- Bayesian inference of scaled versus fractional Brownian motion
- Leveraging large-deviation statistics to decipher the stochastic properties of measured trajectories
- Rate equations, spatial moments, and concentration profiles for mobile-immobile models with power-law and mixed waiting time distributions
- Feynman-Kac equation for anomalous processes with space- and time-dependent forces
- Langevin formulation of a subdiffusive continuous time random walk in physical time
- On the fractional Poisson process and the discretized stable subordinator
- Anomalous diffusion in nonhomogeneous media: Time-subordinated Langevin equation approach
- 1/f noise from point process and time-subordinated Langevin equations
- Competition between ac driving-forces and Lévy flights in a nonthermal ratchet
- Simulation of the continuous-time random walk using subordination schemes
- Subdiffusion in the Presence of Reactive Boundaries: A Generalized Feynman-Kac Approach
- Active Lévy Matter: Anomalous Diffusion, Hydrodynamics and Linear Stability
- The subordinated processes controlled by a family of subordinators and corresponding Fokker-Planck type equations
- A second-order difference scheme for the time fractional substantial diffusion equation
- Some recent advances in theory and simulation of fractional diffusion processes