TY - RPRT TI - Directed anomalous diffusion without a biased field: a ratchet accelerator. AU - Jiangbin Gong AU - Paul Brumer PY - 2004 DO - 10.1103/physreve.70.016202 UR - https://pubmed.ncbi.nlm.nih.gov/15324147/ ID - 15324147 ER -