Journal
PHYSICAL REVIEW E
Volume 85, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.85.052101
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Funding
- DFG [IRTG 1740]
- German National Academic Foundation
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We analyze the dynamics of particles in two dimensions with constant speed and a stochastic switching angle dynamics defined by a correlated dichotomous Markov process (telegraph noise) plus Gaussian white noise. We study various cases of the asymptotic diffusional motion of the particle which is characterized by the effective diffusion coefficient. Expressions for this coefficient are derived and discussed in dependence on the correlation time and the intensity of the noise. The situation with a given mean curvature is of special interest since a nonmonotonic behavior of the effective diffusion coefficient as a function of the noise intensity and correlation time is found. A time scale matching condition for maximal diffusion is formulated.
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