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High-fidelity operation of quantum photonic circuits

High-fidelity operation of quantum photonic circuits
High-fidelity operation of quantum photonic circuits
We demonstrate photonic quantum circuits that operate at the stringent levels that will be required for future quantum information science and technology. These circuits are fabricated from silica-on-silicon waveguides forming directional couplers and interferometers. While our focus is on the operation of quantum circuits, to test this operation required construction of a spectrally tuned photon source to produce near-identical pairs of photons. We show non-classical interference with two photons and a two-photon entangling logic gate that operate with near-unit fidelity. These results are a significant step towards large-scale operation of photonic quantum circuits
0003-6951
211109
Laing, Anthony
785153da-477d-4605-b117-f56836ce9056
Peruzzo, Alberto
01b3682e-f137-40ca-8a9b-1dacf59ab0a6
Politi, Alberto
cf75c0a8-d34d-4cbe-b9d5-e408c0edeeec
Verde, Maria Rodas
431f284d-9806-4a51-bc99-1ea1c56cebe6
Halder, Matthaeus
93aa7e6a-375d-486f-9c94-7d427b9c0483
Ralph, Timothy C.
019209fc-683e-4425-ab87-5cb855e94714
Thompson, Mark G.
c5ee6a35-31e8-4ddd-9744-7b5eb54af38e
O'Brien, Jeremy L.
03208a26-089b-4212-b691-87f26cff783c
Laing, Anthony
785153da-477d-4605-b117-f56836ce9056
Peruzzo, Alberto
01b3682e-f137-40ca-8a9b-1dacf59ab0a6
Politi, Alberto
cf75c0a8-d34d-4cbe-b9d5-e408c0edeeec
Verde, Maria Rodas
431f284d-9806-4a51-bc99-1ea1c56cebe6
Halder, Matthaeus
93aa7e6a-375d-486f-9c94-7d427b9c0483
Ralph, Timothy C.
019209fc-683e-4425-ab87-5cb855e94714
Thompson, Mark G.
c5ee6a35-31e8-4ddd-9744-7b5eb54af38e
O'Brien, Jeremy L.
03208a26-089b-4212-b691-87f26cff783c

Laing, Anthony, Peruzzo, Alberto, Politi, Alberto, Verde, Maria Rodas, Halder, Matthaeus, Ralph, Timothy C., Thompson, Mark G. and O'Brien, Jeremy L. (2010) High-fidelity operation of quantum photonic circuits. Applied Physics Letters, 97 (21), 211109. (doi:10.1063/1.3497087).

Record type: Article

Abstract

We demonstrate photonic quantum circuits that operate at the stringent levels that will be required for future quantum information science and technology. These circuits are fabricated from silica-on-silicon waveguides forming directional couplers and interferometers. While our focus is on the operation of quantum circuits, to test this operation required construction of a spectrally tuned photon source to produce near-identical pairs of photons. We show non-classical interference with two photons and a two-photon entangling logic gate that operate with near-unit fidelity. These results are a significant step towards large-scale operation of photonic quantum circuits

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1.3497087.pdf_expires=1432286683&id=id&accname=2103930&checksum=2F2BFE94089760721F0982E31291E3DA - Version of Record
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More information

Published date: 23 November 2010
Organisations: Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 377108
URI: http://eprints.soton.ac.uk/id/eprint/377108
ISSN: 0003-6951
PURE UUID: c2dda8c8-248e-48ab-967f-b6eca34d4f96
ORCID for Alberto Politi: ORCID iD orcid.org/0000-0002-3668-9474

Catalogue record

Date deposited: 22 May 2015 09:11
Last modified: 10 Dec 2019 01:34

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Contributors

Author: Anthony Laing
Author: Alberto Peruzzo
Author: Alberto Politi ORCID iD
Author: Maria Rodas Verde
Author: Matthaeus Halder
Author: Timothy C. Ralph
Author: Mark G. Thompson
Author: Jeremy L. O'Brien

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