| Popis: |
This chapter the additional ingredient of anomalous diffusion, combined with non equilibrium conditions, is studied. The analysis starts with a random walk on a comb lattice, which can be analytically solvable. A detailed analysis of the “single file model” is then shown and the response analysis is similar to that one in higher dimensions. The chapter ends with the study of a ratchet effect in a fragile glass former. Because of the presence of disorder, under certain conditions, an intruder in a glass former exhibits subdiffusion. Despite of the great differences from the “family” of the non equilibrium steady states, also in this system it is possible to observe a ratchet effect, although characterized by a subvelocity due to the disorder. |
