Multiplexed entanglement generation over quantum networks using multi-qubit nodes. (20th June 2017)

• Record Type: Journal Article
• Authors: Dam, Suzanne B van; Humphreys, Peter C; Rozpędek, Filip; Wehner, Stephanie; Hanson, Ronald
• Is Part Of: Quantum science and technology. Volume 2:Number 3(2017)
• Publication Date: 2017-06-20
• Subjects: quantum networks -- nitrogen-vacancy centres -- entanglement protocols; Quantum theory -- Periodicals; Quantum theory; Periodicals; 530
• DOI: 10.1088/2058-9565/aa7446
• Languages: English
• ISSNs: 2058-9565

Abstract

Abstract: Quantum networks distributed over distances greater than a few kilometres will be limited by the time required for information to propagate between nodes. We analyse protocols that are able to circumvent this bottleneck by employing multi-qubit nodes and multiplexing. For each protocol, we investigate the key network parameters that determine its performance. We model achievable entangling rates based on the anticipated near-term performance of nitrogen-vacancy centres and other promising network platforms. This analysis allows us to compare the potential of the proposed multiplexed protocols in different regimes. Moreover, by identifying the gains that may be achieved by improving particular network parameters, our analysis suggests the most promising avenues for research and development of prototype quantum networks.