Entanglement and quantum state engineering in the optically driven two-electron double-dot structure

TL;DR

This paper theoretically investigates how bichromatic laser pulses can induce effective exchange coupling between electron spins in a double-dot structure, enabling quantum state engineering and entanglement for quantum information processing.

Contribution

It demonstrates the control of electron spin interactions via laser pulses in double-dot systems, advancing quantum information applications.

Findings

Laser pulses can generate effective exchange coupling between electron spins.

The study provides insights into quantum state engineering in double-dot structures.

Potential applications in entanglement generation for quantum computing.

Abstract

We study theoretically the quantum dynamics of two interacting electrons in the symmetric double-dot structure under the influence of the bichromatic resonant pulse. The state vector evolution is studied for two different pulse designs. It is shown that the laser pulse can generate the effective exchange coupling between the electron spins localized in different dots. Possible applications of this effect to the quantum information processing (entanglement generation, quantum state engineering) are discussed.