Selective electron transfer between the quantum dots under the resonant pulse

TL;DR

This paper theoretically investigates the coherent dynamics of electron transfer in quantum-dot rings under resonant pulses, demonstrating near-perfect selectivity and transfer probability, with implications for quantum nanoelectronic device engineering.

Contribution

It introduces a theoretical model showing how to achieve selective and high-probability electron transfer between quantum dots using resonant pulses.

Findings

Transfer probability can approach unity under optimal conditions.

Factors reducing transfer efficiency are identified and discussed.

The results can inform the design of quantum bits in nanoelectronic devices.

Abstract

The coherent quantum dynamics of an electron in the quantum-dot ring structure under the resonant electromagnetic pulse is studied theoretically. A possibility of the selective electron transfer between any two dots is demonstrated. The transfer probability as a function of the pulse and dot parameters is calculated. It is shown that this probability can be close to unity. The factors lowering the transfer probability in real systems are discussed. The results obtained may be used in the engineering of novel nanoelectronic devices for quantum bits processing.