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Error-Proof Optical Bell-State Analyzer

Total Cost €


EC-Contrib. €






Project "ErBeStA" data sheet

The following table provides information about the project.


Organization address
address: KARLSPLATZ 13
city: WIEN
postcode: 1040

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Austria [AT]
 Project website
 Total cost 2˙996˙653 €
 EC max contribution 2˙996˙653 € (100%)
 Programme 1. H2020-EU.1.2.1. (FET Open)
 Code Call H2020-FETOPEN-1-2016-2017
 Funding Scheme RIA
 Starting year 2018
 Duration (year-month-day) from 2018-07-01   to  2021-06-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    TECHNISCHE UNIVERSITAET WIEN AT (WIEN) coordinator 424˙887.00
2    SYDDANSK UNIVERSITET DK (ODENSE M) participant 509˙488.00
4    UNIVERSITAET ROSTOCK DE (ROSTOCK) participant 338˙917.00
5    FORSCHUNGSVERBUND BERLIN EV DE (BERLIN) participant 328˙706.00
6    AARHUS UNIVERSITET DK (AARHUS C) participant 318˙073.00
7    UNIVERSITAT WIEN AT (WIEN) participant 306˙436.00


 Project objective

We propose to solve the long-standing problem of building a complete Bell-state analyser that is free from measurement errors. The realisation of such an error-proof Bell-state analyser constitutes a groundbreaking milestone for information technologies as it forms the key component for universal optical quantum computers and long-distance quantum communication. Reliable Bell-state detection will immediately impact the development of emerging quantum technologies, facilitate high-precision time-keeping and sensing, and enable future technologies such as secure communication or quantum cloud computing. This major conceptual and technological advancement will be made possible by combining two of the most recent breakthroughs at the frontier of quantum optics and nanophotonics: (i) ultra-strong quantum optical nonlinearities obtained from Rydberg-atom interactions or from a single quantum emitter strongly coupled to an optical microresonator and (ii) nanofabricated optical waveguide chips that permit high-level control of light propagation at the wavelength scale. The ambitious goal of the ErBeStA-project will be reached within a consortium which combines the essential conceptual and technological expertise in all required key areas and contributes complementary cutting-edge experimental setups that facilitate all necessary technological developments. Building the proposed Bell-state analyser will involve the development of advanced optical devices such as nondestructive photon-number-resolving detectors as well as configurable photon-number-specific filters and sorters, all of which constitute major scientific and technological breakthroughs on their own. Overall, ErBeStA will provide the first nonlinear light-matter interface coupled to on-chip complex optical circuitry, and, thereby, lay the foundation for future technology built on scalable quantum nonlinear devices.


List of deliverables.
Coupling ensembles/single emitters to guided light + non-linear response Documents, reports 2020-02-07 12:45:45
Photon routing Documents, reports 2019-12-02 15:38:04
Cold atoms on optical chip Documents, reports 2019-12-02 15:38:05
Data management plan Open Research Data Pilot 2019-12-02 15:38:04
Optical chips for quantum emitters Documents, reports 2019-12-02 15:38:05
Calc. emitter-waveguide coupling Documents, reports 2019-12-02 15:38:05
Wiki & social media site Websites, patent fillings, videos etc. 2019-12-02 15:38:05
Webpage & logo Websites, patent fillings, videos etc. 2019-12-02 15:38:04

Take a look to the deliverables list in detail:  detailed list of ErBeStA deliverables.


year authors and title journal last update
List of publications.
2019 I. Alonso Calafell, J. D. Cox, M. Radonjić, J. R. M. Saavedra, F. J. García de Abajo, L. A. Rozema, P. Walther
Quantum computing with graphene plasmons
published pages: , ISSN: 2056-6387, DOI: 10.1038/s41534-019-0150-2
npj Quantum Information 5/1 2019-12-02
2019 Jemma A Needham, Igor Lesanovsky, Beatriz Olmos
Subradiance-protected excitation transport
published pages: 73061, ISSN: 1367-2630, DOI: 10.1088/1367-2630/ab31e8
New Journal of Physics 21/7 2019-12-02
2019 Valeria Saggio, Aleksandra Dimić, Chiara Greganti, Lee A. Rozema, Philip Walther, Borivoje Dakić
Experimental few-copy multipartite entanglement detection
published pages: , ISSN: 1745-2473, DOI: 10.1038/s41567-019-0550-4
Nature Physics 2019-12-02
2019 N. Cooper, E. Da Ros, C. Briddon, V. Naniyil, M. T. Greenaway, L. Hackermueller
Prospects for strongly coupled atom-photon quantum nodes
published pages: , ISSN: 2045-2322, DOI: 10.1038/s41598-019-44292-2
Scientific Reports 9/1 2019-12-02

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The information about "ERBESTA" are provided by the European Opendata Portal: CORDIS opendata.

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