All-optical quantum information processing using Rydberg gates

Paredes-Barato, D.; Adams, C.S.

doi:10.1103/physrevlett.112.040501

All-optical quantum information processing using Rydberg gates

Paredes-Barato, D.; Adams, C.S.

Authors

D. Paredes-Barato

Professor Stuart Adams c.s.adams@durham.ac.uk
Professor

Contributors

D Paredes vnxf61@durham.ac.uk
Other

Abstract

In this Letter, we propose a hybrid scheme to implement a photonic controlled-z (CZ) gate using photon storage in highly excited Rydberg states, which controls the effective photon-photon interaction using resonant microwave fields. Our scheme decouples the light propagation from the interaction and exploits the spatial properties of the dipole blockade phenomenon to realize a CZ gate with minimal loss and mode distortion. By excluding the coupling efficiency, fidelities exceeding 95% are achievable and are found to be mainly limited by motional dephasing and the finite lifetime of the Rydberg levels.

Citation

Paredes-Barato, D., & Adams, C. (2014). All-optical quantum information processing using Rydberg gates. Physical Review Letters, 112(4), Article 040501. https://doi.org/10.1103/physrevlett.112.040501

Journal Article Type	Article
Online Publication Date	Jan 28, 2014
Publication Date	Jan 31, 2014
Deposit Date	Dec 4, 2013
Publicly Available Date	Feb 12, 2014
Journal	Physical Review Letters
Print ISSN	0031-9007
Electronic ISSN	1079-7114
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	112
Issue	4
Article Number	040501
DOI	https://doi.org/10.1103/physrevlett.112.040501
Publisher URL	http://link.aps.org/doi/10.1103/PhysRevLett.112.040501

Files

Published Journal Article (719 Kb)
PDF

Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.