Quantum Logic with Cavity Photons from Single Atoms

Holleczek, Annemarie; Barter, Oliver; Rubenok, Allison; Dilley, Jerome; Nisbet-Jones, Peter B.?R.; Langfahl-Klabes, Gunnar; Marshall, Graham D.; Sparrow, Chris; O'Brien, Jeremy L.; Poulios, Konstantinos; Kuhn, Axel; Matthews, Jonathan C.?F.

Abstract

© 2016 American Physical Society. We demonstrate quantum logic using narrow linewidth photons that are produced with an a priori nonprobabilistic scheme from a single Rb87 atom strongly coupled to a high-finesse cavity. We use a controlled-not gate integrated into a photonic chip to entangle these photons, and we observe nonclassical correlations between photon detection events separated by periods exceeding the travel time across the chip by 3 orders of magnitude. This enables quantum technology that will use the properties of both narrow-band single photon sources and integrated quantum photonics.

Citation

Holleczek, A., Barter, O., Rubenok, A., Dilley, J., Nisbet-Jones, P. B., Langfahl-Klabes, G., …Matthews, J. C. (2016). Quantum Logic with Cavity Photons from Single Atoms. Physical Review Letters, 117(2), Article 023602. https://doi.org/10.1103/PhysRevLett.117.023602

• Journal Article Type: Article
• Acceptance Date: Mar 18, 2016
• Online Publication Date: Jul 8, 2016
• Publication Date: Jul 8, 2016
• Deposit Date: Sep 23, 2019
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 117
• Issue: 2
• Article Number: 023602
• DOI: https://doi.org/10.1103/PhysRevLett.117.023602
• Keywords: Quantum Physics
• Public URL: https://nottingham-repository.worktribe.com/output/2465680
• Publisher URL: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.117.023602