All-optical quantum information processing using Rydberg gates

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

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
• Public URL: https://durham-repository.worktribe.com/output/1446335
• Publisher URL: http://link.aps.org/doi/10.1103/PhysRevLett.112.040501