Experimental realization of the one qubit Deutsch-Jozsa algorithm in a quantum dot

TL;DR

This paper demonstrates the implementation of the one-qubit Deutsch-Jozsa algorithm using a single quantum dot, showcasing ultrafast optical control of quantum logic in semiconductor systems.

Contribution

It presents the first experimental realization of a quantum algorithm in a semiconductor quantum dot with femtosecond control.

Findings

Successful execution of the Deutsch-Jozsa algorithm on a single quantum dot

Ultrafast optical techniques enable precise quantum operations in semiconductors

Proof of concept for scalable quantum computing components in solid-state systems

Abstract

We perform quantum interference experiments on a single self-assembled semiconductor quantum dot. The presence or absence of a single exciton in the dot provides a qubit that we control with femtosecond time resolution. We combine a set of quantum operations to realize the single-qubit Deutsch-Jozsa algorithm. The results show the feasibility of single qubit quantum logic in a semiconductor quantum dot using ultrafast optical control.