The University of Southampton
University of Southampton Institutional Repository

Silica-on-silicon waveguide quantum circuits

Silica-on-silicon waveguide quantum circuits
Silica-on-silicon waveguide quantum circuits
Quantum technologies based on photons will likely require an integrated optics architecture for improved performance, miniaturization, and scalability. We demonstrate high-fidelity silica-on-silicon integrated optical realizations of key quantum photonic circuits, including two-photon quantum interference with a visibility of 94.8 ± 0.5%; a controlled-NOT gate with an average logical basis fidelity of 94.3 ± 0.2%; and a path-entangled state of two photons with fidelity of >92%. These results show that it is possible to directly “write” sophisticated photonic quantum circuits onto a silicon chip, which will be of benefit to future quantum technologies based on photons, including information processing, communication, metrology, and lithography, as well as the fundamental science of quantum optics.
0036-8075
646-649
Politi, Alberto
cf75c0a8-d34d-4cbe-b9d5-e408c0edeeec
Cryan, Martin
aaa0436c-5fe7-4e78-930a-3579c45cec24
Rarity, John
e52b9260-c19f-4481-9bc8-e1086f29a6b6
Yu, Siyuan
10fdb73d-5561-49ad-bf80-d347f0227753
O'Brien, Jeremy
850b6d73-858f-4140-a054-547ae011e435
Politi, Alberto
cf75c0a8-d34d-4cbe-b9d5-e408c0edeeec
Cryan, Martin
aaa0436c-5fe7-4e78-930a-3579c45cec24
Rarity, John
e52b9260-c19f-4481-9bc8-e1086f29a6b6
Yu, Siyuan
10fdb73d-5561-49ad-bf80-d347f0227753
O'Brien, Jeremy
850b6d73-858f-4140-a054-547ae011e435

Politi, Alberto, Cryan, Martin, Rarity, John, Yu, Siyuan and O'Brien, Jeremy (2008) Silica-on-silicon waveguide quantum circuits. Science, 320 (5876), 646-649. (doi:10.1126/science.1155441).

Record type: Article

Abstract

Quantum technologies based on photons will likely require an integrated optics architecture for improved performance, miniaturization, and scalability. We demonstrate high-fidelity silica-on-silicon integrated optical realizations of key quantum photonic circuits, including two-photon quantum interference with a visibility of 94.8 ± 0.5%; a controlled-NOT gate with an average logical basis fidelity of 94.3 ± 0.2%; and a path-entangled state of two photons with fidelity of >92%. These results show that it is possible to directly “write” sophisticated photonic quantum circuits onto a silicon chip, which will be of benefit to future quantum technologies based on photons, including information processing, communication, metrology, and lithography, as well as the fundamental science of quantum optics.

Text
646.full.pdf - Version of Record
Restricted to Repository staff only
Request a copy

More information

Published date: 27 March 2008
Organisations: Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 358542
URI: http://eprints.soton.ac.uk/id/eprint/358542
ISSN: 0036-8075
PURE UUID: c6ac6e21-e1b3-47ff-b476-76d56eaface2
ORCID for Alberto Politi: ORCID iD orcid.org/0000-0002-3668-9474

Catalogue record

Date deposited: 11 Oct 2013 13:06
Last modified: 15 Sep 2021 02:02

Export record

Altmetrics

Contributors

Author: Alberto Politi ORCID iD
Author: Martin Cryan
Author: John Rarity
Author: Siyuan Yu
Author: Jeremy O'Brien

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×