Fig. 3: Persistence exponents in dimensions higher than one.
From: Everlasting impact of initial perturbations on first-passage times of non-Markovian random walks
a d = 2 and b d = 3. These results are obtained when the random walker is a tagged monomer in different polymer models: semi-flexible chains (H = 3/8), flexible chain without hydrodynamic interactions (H = 1/4), macromolecule of fractal architecture (Vicsek fractal, H ≃ 0.203).
