Directed excitation transfer in vibrating chains by external fields
arXiv:1010.2645 · doi:10.1103/PhysRevE.83.061123
Abstract
We study the coherent dynamics of excitations on vibrating chains. By applying an external field and matching the field strength with the oscillation frequency of the chain it is possible to obtain an (average) transport of an initial Gaussian wave packet. We distinguish between a uniform oscillation of all nodes of the chain and the chain being in its lowest eigenmode. Both cases can lead to directed transport.
7 pages, 10 figures (some of the figures are in png-format, high-quality pdf-files available upon request)
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