Abstract

Abstract Despite the tremendous progress of quantum cryptography, efficient quantum communication over long distances (≥1000 km) remains an outstanding challenge due to fiber attenuation and operation errors accumulated over the entire communication distance. Quantum repeaters (QRs), as a promising approach, can overcome both photon loss and operation errors and hence significantly speedup the communication rate. Depending on the methods used to correct loss and operation errors, all the proposed QR schemes can be classified into three categories (generations). Here we present the first systematic comparison of three generations of quantum repeaters by evaluating the cost of both temporal and physical resources and identify the optimized quantum repeater architecture for a given set of experimental parameters for use in quantum key distribution. Our work provides a roadmap for the experimental realizations of highly efficient quantum networks over transcontinental distances.

Keywords

Computer scienceComputational biologyBiology

Affiliated Institutions

Related Publications

Publication Info

Year
2016
Type
article
Volume
6
Issue
1
Pages
20463-20463
Citations
444
Access
Closed

External Links

Social Impact

Social media, news, blog, policy document mentions

Citation Metrics

444
OpenAlex

Cite This

Sreraman Muralidharan, Linshu Li, Jungsang Kim et al. (2016). Optimal architectures for long distance quantum communication. Scientific Reports , 6 (1) , 20463-20463. https://doi.org/10.1038/srep20463

Identifiers

DOI
10.1038/srep20463