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Kaltenbaek, Rainer https://orcid.org/0000-0002-9991-9919

Acin, Antonio https://orcid.org/0000-0002-1355-3435

Bacsardi, Laszlo https://orcid.org/0000-0002-7337-317X

Bianco, Paolo

Bouyer, Philippe https://orcid.org/0000-0003-4458-0089

Diamanti, Eleni https://orcid.org/0000-0003-1795-5711

Marquardt, Christoph https://orcid.org/0000-0002-5045-513X

Omar, Yasser https://orcid.org/0000-0003-2333-5762

Pruneri, Valerio https://orcid.org/0000-0002-6425-9332

Rasel, Ernst https://orcid.org/0000-0001-7861-8829

Sang, Bernhard

Seidel, Stephan https://orcid.org/0000-0003-4203-0884

Ulbricht, Hendrik

Ursin, Rupert https://orcid.org/0000-0002-9403-269X

Villoresi, Paolo https://orcid.org/0000-0002-7977-015X

van den Bossche, Mathias https://orcid.org/0000-0001-5984-0029

von Klitzing, Wolf https://orcid.org/0000-0001-6172-8407

Zbinden, Hugo https://orcid.org/0000-0002-9237-1700

Paternostro, Mauro https://orcid.org/0000-0001-8870-9134

Bassi, Angelo https://orcid.org/0000-0001-7500-387X

Funding for this research was provided by:

European Cooperation in Science and Technology (CA15220, CA15220, CA15220, CA15220, CA15220, CA15220, CA16221)

Horizon 2020 research and innovation programme (820466, 820466)

European Research Council (AdG CERQUTE)

AXA Chair in Quantum Information Science

Government of Spain (FIS2020-TRANQI, Severo Ochoa CEX2019-000910-S)

Fundación Cellex (CERCA)

Fundació Mir-Puig (AGAUR SGR 1381)

Österreichische Forschungsförderungsgesellschaft (854036, 865996)

H2020 Future and Emerging Technologies (863127, 766900, 766900, 766900)

European Union Horizon 2020 Research and Innovation Programme (820466, 857156)

Gottfried Wilhelm Leibniz Universität Hannover (CRC 1227 DQmat, project B07)

Deutsche Forschungsgemeinschaft (EXC 2123, research units B02 and B05)

Deutsches Zentrum für Luft- und Raumfahrt (QUEST-LFS)

Bundesministerium für Wirtschaft und Energie (DLR 50WP1413, 50WM1952, 50WP1700, 50RK1957)

Verein Deutscher Ingenieure (VDI13N14838)

DfE-SF Investigator Programme (15/IA/2864)

Royal Society Wolfson Research Fellowship (FSWF\R3\183013)

Leverhulme Trust (RGP-2018-266, RPG-2016-046)

Engineering and Physical Sciences Research Council (EP/T028106/1)

Niedersächsisches Vorab (DLR-SI, Quantum- and Nano-Metrology, Project QT3)

Istituto Nazionale di Fisica Nucleare

Foundational Questions Institute

University of Trieste

Magyar Tudományos Akadémia (János Bplyai Research Scholarship)

Ministry of Innovation and Technology

Nemzeti Kutatási, Fejlesztési és Innovaciós Alap

UKRI Research England SPRINT (SIGMA)

Ministero dell’Istruzione, dell’Università e della Ricerca (Departments of Excellence)

Fundação para a Ciência e a Tecnologia (UIDB/50008/2020, Quantsat-PT)

Centre National d’Etudes Spatiales (ICE technology development program, GRICE and CARIOCA mission studies)

Text and Data Mining valid from 2021-06-01

Version of Record valid from 2021-06-25