Roadmap on nanoscale superconductivity for quantum technologies
Reviewartikel, 2026
In 2025, the Year of Quantum Science and Technology (https://quantum2025.org/), we celebrate a century of quantum mechanics, witnessing a surge in activities that illuminate its inherent strangeness and drive technological innovation. Superconductivity, discovered 114 years ago, stands as a prime example, offering direct and compelling evidence of macroscopic quantum phenomena. Beyond its ability to conduct immense currents without loss, superconductivity reveals the quantum realm operating on a scale we can directly observe and manipulate. The macroscopic quantum coherence, where an ensemble of particles is described by a single wave function, leads to remarkable consequences: dissipation-less current and flux quantization-the basic properties exploited in superconducting quantum circuit fabrication. This Roadmap has been inspired by intensive discussions and collaborations emerging from the European Cooperation in Science & Technology COST-Action CA21144 (SuperQuMap-Superconducting Nanodevices and Quantum Materials for Coherent Manipulation). The aim of the COST Action SuperQuMap is to establish a strong European network centered on macroscopic quantum behavior in superconductors, bringing together groups of different backgrounds and more than 30 countries. The roadmap outlines the network's concrete activities, driving advancements in superconductor-based quantum technologies and charting future directions. Spanning fundamental research to practical applications, the roadmap incorporates insights from industry partners developing quantum computation. It begins by exploring quantum materials, highlighting how topology and electronic correlations could catalyze a quantum leap in technology. We then delve into manipulating the superconducting phase, leveraging advancements in magnetism, 3D fabrication, and tunable correlations. Further, we showcase the advanced microscopy techniques-such as angle-resolved photoemission spectroscopy and scanning probes-used to visualize quantum behavior. Finally, and crucially, we detail the quantum devices developed within the network, and their transformative impact on modern quantum computing approaches.
quantum materials
magnetic flux quanta
quantum technologies
topological superconductivity
superconductor-ferromagnet hybrids
local probe techniques
Josephson devices
Författare
Oleksandr Dobrovolskiy
FLUXONICS European Foundry Superconducting Elect e
Technische Universität Braunschweig
Hermann Suderow
Universidad Autonoma de Madrid (UAM)
Francesco Tafuri
Universita degli Studi di Napoli Federico II
Annica M. Black-Schaffer
Uppsala universitet
Jose L. Lado
Aalto-Yliopisto
Asle Sudbo
Norges teknisk-naturvitenskapelige universitet
Daniela Stornaioulo
Universita degli Studi di Napoli Federico II
Consiglio Nazionale delle Ricerche (CNR)
Chuan Li
Universiteit Twente
Anna E. Bohmer
Ruhr-Universität Bochum
Lan Maria Tran
Polish Academy of Sciences
Andrzej J. Zaleski
Polish Academy of Sciences
Adrian Crisan
National Institute of Materials Physics
Massimiliano Polichetti
Universita degli Studi di Salerno
Armando Galluzzi
Universita degli Studi di Salerno
Ali Gencer
Ankara Univ
Bernd Aichner
Universität Wien
Neven Barisic
Technische Universität Wien
Sveučilište u Zagrebu
Wolfgang Lang
Universität Wien
Tomas Samuely
Univerzita Pavla Jozefa Šafárika
Martin Gmitra
Slovak Academy of Sciences
Tristan Cren
Sorbonne Université
Mateo Calandra
Sorbonne Université
Peter Samuely
Slovak Academy of Sciences
Jeroen Custers
Univerzita Karlova
Rosa Cordoba
Universitat de Valencia
Vladimir M. Fomin
Technical State University of the Republic of Moldova
Leibniz IFW Dresden
Nicola Poccia
Leibniz IFW Dresden
Universita degli Studi di Napoli Federico II
Pavol Szabo
Slovak Academy of Sciences
Fabrizio Porrati
Johann Wolfgang Goethe Universität Frankfurt am Main
Gleb Kakazei
Universidade do Porto
Jan Aarts
Universiteit Leiden
Jason Robinson
University of Cambridge
Javier E. Villegas
Université Paris-Saclay
Matthias Althammer
Bayerische Akademie der Wissenschaften
Technische Universität München
Hans Huebl
Munich Ctr Quantum Sci & Technol MCQST
Technische Universität München
Bayerische Akademie der Wissenschaften
Akashdeep Kamra
RPTU Kaiserslautern-Landau
Mathias Weiler
RPTU Kaiserslautern-Landau
J. Hugo Dil
Paul Scherrer Institut
Ecole Polytechnique Federale de Lausanne (EPFL)
Daniil Evtushinsky
Ecole Polytechnique Federale de Lausanne (EPFL)
Beena Kalisky
Bar-Ilan University
Yonathan Anahory
The Hebrew University Of Jerusalem
Simon Bending
University of Bath
Peter Liljeroth
Aalto-Yliopisto
Abdou Hassanien
Institut Jožef Stefan
Isabel Guillamon
Universidad Autonoma de Madrid (UAM)
Edwin Herrera
Universidad Autonoma de Madrid (UAM)
Silhanek
Universite de Liège
Joris Van de Vondel
KU Leuven
Anna Palau
Consejo Superior de Investigaciones Científicas (CSIC)
Ilya Charaev
Universität Zürich
Maria Sidorova
Humboldt-Universität zu Berlin
Deutsches Zentrums für Luft- und Raumfahrt (DLR)
Floriana Lombardi
Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik
Thilo Bauch
Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik
Cheryl Feuillet-Palma
Sorbonne Université
Vasily Stolyarov
Sorbonne Université
Dimitri Roditchev
Sorbonne Université
Vladimir M. Krasnov
Stockholms universitet
Benedikt Hampel
Technische Universität Braunschweig
Maria Jose Martinez-Perez
Universidad de Zaragoza
Javier Sese
Universidad de Zaragoza
Dieter Koelle
Universität Tübingen
Stefano Poletto
Rigetti Comp, 775 Heinz Ave
Alessandro Bruno
QuantWare B.V.
Davide Massarotti
Universita degli Studi di Napoli Federico II
Superconductor Science and Technology
0953-2048 (ISSN) 1361-6668 (eISSN)
Vol. 39 2 023502Ämneskategorier (SSIF 2025)
Den kondenserade materiens fysik
DOI
10.1088/1361-6668/ae3030