Resonant optical electron transfer in one-dimensional multiwell structures

TL;DR

This paper investigates resonant optical electron transfer in a one-dimensional multiwell nanostructure, demonstrating controlled electron transfer between edge wells via resonant electromagnetic pulses, with potential applications in quantum communication.

Contribution

It introduces a model for resonant electron transfer in a multiwell structure and analyzes the dynamics under resonant pulses, highlighting the transfer times and conditions for complete transfer.

Findings

Complete electron transfer occurs at discrete times when pulse frequency matches resonant transition frequencies.

Transfer times range from tens to hundreds of picoseconds depending on structure and pulse parameters.

The results can be applied to quantum networks in quantum communication and information processing.

Abstract

We consider coherent single-electron dynamics in the one-dimensional nanostructure under resonant electromagnetic pulse. The structure is composed of two deep quantum wells positioned at the edges of 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 excited delocalized states can take place at 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 developments of the quantum networks used in quantum communications and/or quantum information processing.