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Error-Proof Optical Bell-State Analyzer


Optical chips for quantum emitters

Report on fabrication of optical chips that are optimised for the coupling to emitters.

Coupling ensembles/single emitters to guided light + non-linear response

Report on the coupling of Rydberg atoms as well as single molecular quantum emitters to chipguided light Report on ultrastrong nonlinear optical response

Number-resolved detection

Report on photon-number resolved detection of chip-guided light.

Novel photonic devices

Report on novel photonic devices such as non-destructive detectors.

Photon routing

Report on photon number-dependent sorting/filtering of guided light.

Framework for on-chip Rydberg non-linearities

Report on theoretical framework for on-chip Rydberg non-linearities.

Fibre-to-chip coupl., opt. circuitry

Report on development of optimised fibre-to-chip couplings and low-loss optical circuitry.

Feedback Master equation

Report on derivation and analysis of feedback Master equation for light-matter networks.

Cold atoms on optical chip

Report on coupling of cold ground state atoms to chip-guided light.

Calc. emitter-waveguide coupling

Report on optimisation of atom-waveguide/fibre coupling.

Data management plan

A data management plan will be devised.

Wiki & social media site

A Wiki for internal use and a social media site for public out-reach will be established.

Webpage & logo

A project webpage will go online including the project logo

International workshop

An international workshop will be organized and hosted.

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Novel single-mode narrow-band photon source of high brightness tuned to cesium D2 line

Author(s): Amir Moqanaki, Francesco Massa, Philip Walther
Published in: APL Photonics, 4/9, 2019, Page(s) 090804, ISSN 2378-0967
Publisher: AIP Publishing LLC
DOI: 10.1063/1.5095616

Experimental Two‐Way Communication with One Photon

Author(s): Francesco Massa, Amir Moqanaki, Ämin Baumeler, Flavio Del Santo, Joshua A. Kettlewell, Borivoje Dakić, Philip Walther
Published in: Advanced Quantum Technologies, 2/11, 2019, Page(s) 1900050, ISSN 2511-9044
Publisher: WILEY-VCH Verlag GmbH & Co. KGaA
DOI: 10.1002/qute.201900050

Fiber-compatible photonic feed-forward with 99% fidelity

Author(s): Guilherme Luiz Zanin, Maxime J Jacquet, Michele Spagnolo, Peter Schiansky, Irati Alonso Calafell, Lee A Rozema, Philip Walther
Published in: Optics Express, 29/3, 2021, Page(s) 3425, ISSN 1094-4087
Publisher: Optical Society of America
DOI: 10.1364/oe.409867

Prospects for strongly coupled atom-photon quantum nodes

Author(s): N. Cooper, E. Da Ros, C. Briddon, V. Naniyil, M. T. Greenaway, L. Hackermueller
Published in: Scientific Reports, 9/1, 2019, ISSN 2045-2322
Publisher: Nature Publishing Group
DOI: 10.1038/s41598-019-44292-2

Subradiance-protected excitation transport

Author(s): Jemma A Needham, Igor Lesanovsky, Beatriz Olmos
Published in: New Journal of Physics, 21/7, 2019, Page(s) 073061, ISSN 1367-2630
Publisher: Institute of Physics Publishing
DOI: 10.1088/1367-2630/ab31e8

Quantum computing with graphene plasmons

Author(s): I. Alonso Calafell, J. D. Cox, M. Radonjić, J. R. M. Saavedra, F. J. García de Abajo, L. A. Rozema, P. Walther
Published in: npj Quantum Information, 5/1, 2019, ISSN 2056-6387
Publisher: Nature
DOI: 10.1038/s41534-019-0150-2

Experimental few-copy multipartite entanglement detection

Author(s): Valeria Saggio, Aleksandra Dimić, Chiara Greganti, Lee A. Rozema, Philip Walther, Borivoje Dakić
Published in: Nature Physics, 2019, ISSN 1745-2473
Publisher: Nature Publishing Group
DOI: 10.1038/s41567-019-0550-4