Project: Single- and entangled photon sources for quantum metrology

Acronym SEQUME (Reference Number: 20FUN05)
Duration 01/06/2021 - 31/05/2024
Project Topic Quantum technologies (QT) offer the possibility of advances in many areas, including quantum based computing and secure communications. To ensure Europe maintains its position in this important field The Strategic Research Agenda for Metrology in Europe identified a requirement for further metrology in this area and a number of programmes and initiatives are underway such as the ‘Quantum-Flagship’ and the European Metrology Network (EMN) for Quantum technologies. QT based on single photons has the potential to detect extremely small signals which would otherwise be ‘lost’ in the noise from classical measurements. However, the uses of quantum-enhanced measurements by National Metrology Institutes (NMI) has been limited by a lack of traceable photonic detectors and single photon emitters. The EURAMET projects EXL02 SIQUTE and 17FUN06 SIQUST made significant progress in this area, including development of the first single-photon source fully calibrated and traceable to national standards. This project will further develop this work, focusing on the protocols and instrumentation required for measurements at the single-photon level, including sub-shot noise measurements, quantum imaging, sub-diffraction imaging and quantum illumination. In addition, novel methods for the fabrication of single-photon sources will be developed and optimised for such things as purity and brightness. Results are anticipated to provide traceable characterisation of instrumentation based on entangled-photon and single-photon sources including detectors, amplifiers, single-photon spectroradiometers, as well as standardised quantum-optical setups. When completed European NMI’s will have the fundamental metrology required to maintain and strengthen Europe’s position in this important area. It will also stimulate the development of highly innovative commercial devices for which single-photon sources can be exploited, including improved detectors and amplifiers and the quantum imaging of biological systems.
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Network EMPIR
Call EMPIR Call 2020

Project partner

Number Name Role Country
1 Physikalisch-Technische Bundesanstalt Coordinator Germany
2 Aalto-korkeakoulusäätiö sr Partner Finland
3 Cesky Metrologicky Institut Partner Czech Republic
4 Dansk Fundamental Metrologi A/S Partner Denmark
5 Justervesenet Partner Norway
6 AS Metrosert Partner Estonia
7 Turkiye Bilimsel ve Teknolojik Arastirma Kurumu Partner Türkiye
8 Consiglio Nazionale delle Ricerche Partner Italy
9 Agencia Estatal Consejo Superior de Investigaciones Cientificas Partner Spain
10 Friedrich-Alexander-Universität Erlangen - Nürnberg Partner Germany
11 Istituto Nazionale di Fisica Nucleare Partner Italy
12 Keemilise ja Bioloogilise Füüsika Instituut Partner Estonia
13 Technische Universität Berlin Partner Germany
14 Universität des Saarlandes Partner Germany
15 Università degli Studi di Torino Partner Italy
16 Universitaet Stuttgart Partner Germany
17 Konrad-Zuse-Zentrum für Informationstechnik Berlin Partner Germany
18 Istituto Nazionale di Ricerca Metrologica Observer Italy