Collective directed transport of symmetrically coupled lattices in symmetric periodic potentials |
| |
Authors: | Zheng Zhigang Cross M C Hu Gang |
| |
Institution: | Department of Physics, Beijing Normal University, China. |
| |
Abstract: | A mechanism responsible for the directed transport of symmetrically coupled lattices in a symmetric periodic potential is proposed. Under the action of an external wave that breaks the spatiotemporal symmetry and introduces inhomogeneities of the lattice, a net unidirectional current can be observed, originating from a collaboration of the lattice (periodic potential and mutual interactions) and the wave (amplitude, frequency, and phase shifts). Mode-locking induced resonant steps are observed and predicted. The directed transport can be optimized and furthermore controlled by suitably adjusting the parameters of the system. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|