Abstract
We study the moments of displacement of a diffusing particle in one dimension in the presence of correlated random fields. We find that even for short-range algebraic correlations there exists a critical moment qc such that for q<qc the moments of displacement depend logarithmically on time, whereas for q>qc the moments of displacement are a power law of time. This result is surprising since usually short-range correlations do not change the scaling properties.
| Original language | English |
|---|---|
| Pages (from-to) | 1717-1719 |
| Number of pages | 3 |
| Journal | Physical Review A |
| Volume | 40 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1989 |