Has quantum advantage been achieved?

TL;DR

This paper argues that quantum advantage has indeed been achieved, despite ongoing debates, and discusses future directions for theory and experiments in quantum computing.

Contribution

It provides a reasoned argument confirming quantum advantage and outlines next steps for advancing the field.

Findings

Quantum advantage has been achieved, contrary to ongoing debates.

The paper suggests specific future research directions.

It clarifies the current status of quantum computational advantage.

Abstract

Quantum computational advantage was claimed for the first time in 2019 and several experiments since then have reinforced the claim. And yet, there is no consensus whether or not quantum advantage has actually been achieved. In this article, I address this question and argue that, in fact, it has. I also outline next steps for theory and experiments in quantum advantage.