Browsing Statistical Physics by Subject "Random diffusivity"
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The random diffusivity approach for diffusion in heterogeneous systems
(2020-12-16)The two hallmark features of Brownian motion are the linear growth $\langle x^2(t) \rangle = 2 D d t$ of the mean squared displacement (MSD) with diffusion coefficient $D$ in $d$ spatial dimensions, and the Gaussian ... -
Universal spectral features of different classes of random diffusivity processes
(2020-06-26)Stochastic models based on random diffusivities, such as the diffusing- diffusivity approach, are popular concepts for the description of non-Gaussian diffusion in heterogeneous media. Studies of these models typically ...