Resonant optical electron transfer in one-dimensional multiwell structures

We consider coherent single-electron dynamics in one-dimensional nanostructures under a resonant electromagnetic pulse. The structure is composed of two deep quantum wells positioned at the edges of the structure and separated by a sequence of shallow internal wells. We show that complete electron transfer between the states localized in the edge wells through one of the excited delocalized states can take place at a discrete set of times provided that the pulse frequency matches one of resonant transition frequencies. The transfer time varies from several tens to several hundreds of picoseconds and depends on the structure and pulse parameters. The results obtained in this paper can be applied to the development of quantum networks used in quantum communications and/or quantum information processing.