When matter and information merge into “Quantum”

Despite only being its 3rd edition, the QUANTUM MATTER international conference & expo (QUANTUMatter) has already become a reference event for communities involved in the study of quantum materials, quantum information and quantum technologies at large. This article reports on this meeting, which took place in Madrid, in June 2023, with 420 participants and keynote speakers from all areas of quantum technologies and quantum materials.We acknowledge the sponsors who helped organising the conference. The complete list of the funders is available at: https://www.quantumconf.eu/2023/sponsors.php.Postprint (published version