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Continuous-variable entanglement on a chip

Continuous-variable entanglement on a chip
Continuous-variable entanglement on a chip
Encoding quantum information in continuous variables, as the quadrature of electromagnetic fields, is a powerful approach to quantum information science and technology. Continuous-variable entanglement (light beams in Einstein–Podolsky–Rosen, or EPR, states) is a key resource for quantum information protocols and enables hybridization between continuous-variable and single-photon discrete-variable qubit systems. However, continuous-variable systems are currently limited by their implementation in free-space optical networks, and the demand for increased complexity, low loss, high-precision alignment and stability, as well as hybridization, require an alternative approach. Here we present an integrated photonic implementation of the key capabilities for continuous-variable quantum technologies—the generation and characterization of EPR beams in a photonic chip. When combined with integrated squeezing and non-Gaussian operations, these results will open the way to universal quantum information processing with light.
1749-4885
316-319
Masada, Genta
528c61f7-8449-4fe9-b206-a4cac581f63d
Miyata, Kazunori
d56c72ca-6948-42b2-ab42-cd15a51085d8
Politi, Alberto
cf75c0a8-d34d-4cbe-b9d5-e408c0edeeec
Hashimoto, Toshikazu
e676b8b7-6581-4d5d-aaf9-52b376b4afd3
O'Brien, Jeremy L.
03208a26-089b-4212-b691-87f26cff783c
Furusawa, Akira
964f291b-c465-4cec-a2e9-55cf07fea7fa
Masada, Genta
528c61f7-8449-4fe9-b206-a4cac581f63d
Miyata, Kazunori
d56c72ca-6948-42b2-ab42-cd15a51085d8
Politi, Alberto
cf75c0a8-d34d-4cbe-b9d5-e408c0edeeec
Hashimoto, Toshikazu
e676b8b7-6581-4d5d-aaf9-52b376b4afd3
O'Brien, Jeremy L.
03208a26-089b-4212-b691-87f26cff783c
Furusawa, Akira
964f291b-c465-4cec-a2e9-55cf07fea7fa

Masada, Genta, Miyata, Kazunori, Politi, Alberto, Hashimoto, Toshikazu, O'Brien, Jeremy L. and Furusawa, Akira (2015) Continuous-variable entanglement on a chip. Nature Photonics, 9, 316-319. (doi:10.1038/nphoton.2015.42).

Record type: Article

Abstract

Encoding quantum information in continuous variables, as the quadrature of electromagnetic fields, is a powerful approach to quantum information science and technology. Continuous-variable entanglement (light beams in Einstein–Podolsky–Rosen, or EPR, states) is a key resource for quantum information protocols and enables hybridization between continuous-variable and single-photon discrete-variable qubit systems. However, continuous-variable systems are currently limited by their implementation in free-space optical networks, and the demand for increased complexity, low loss, high-precision alignment and stability, as well as hybridization, require an alternative approach. Here we present an integrated photonic implementation of the key capabilities for continuous-variable quantum technologies—the generation and characterization of EPR beams in a photonic chip. When combined with integrated squeezing and non-Gaussian operations, these results will open the way to universal quantum information processing with light.

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More information

Accepted/In Press date: 20 January 2015
Published date: 30 March 2015
Organisations: Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 377112
URI: http://eprints.soton.ac.uk/id/eprint/377112
ISSN: 1749-4885
PURE UUID: 81738e31-cacc-43c7-abe3-08ef805900e7
ORCID for Alberto Politi: ORCID iD orcid.org/0000-0002-3668-9474

Catalogue record

Date deposited: 02 Jun 2015 10:41
Last modified: 03 Dec 2019 01:35

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Contributors

Author: Genta Masada
Author: Kazunori Miyata
Author: Alberto Politi ORCID iD
Author: Toshikazu Hashimoto
Author: Jeremy L. O'Brien
Author: Akira Furusawa

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