Correlated coherent oscillations in coupled semiconductor charge qubits

TL;DR

This paper investigates the coherent dynamics of two electrons in coupled quantum dots, demonstrating how gate voltage adjustments can induce two-qubit operations and correlated oscillations, advancing quantum information processing.

Contribution

It introduces the observation of second-order correlated coherent oscillations in coupled semiconductor charge qubits, highlighting their potential for quantum entanglement.

Findings

Demonstrated two-qubit operations via gate voltage tuning.

Observed second-order correlated coherent oscillations.

Encouraged exploration of quantum entanglement in electronic devices.

Abstract

Designing coherent processes is essential for developing quantum information technologies. We study coherent dynamics of two spatially separated electrons in a coupled semiconductor double quantum dot (DQD), in which various two-qubit operations are demonstrated just by adjusting the gate voltages. Especially, second-order correlated coherent oscillations provide functional quantum processes for making quantum correlation of separated particles. The results encourage searching quantum entanglement in electronic devices.