Abstract：
:Quantum Key Distribution is carving its place among the tools used to secure communications. While a difficult technology, it enjoys benefits that set it apart from the rest, the most prominent is its provable security based on the laws of physics. QKD requires not only the mastering of signals at the quantum level, but also a classical processing to extract a secret-key from them. This postprocessing has been customarily studied in terms of the efficiency, a figure of merit that offers a biased view of the performance of real devices. Here we argue that it is the throughput the significant magnitude in practical QKD, specially in the case of high speed devices, where the differences are more marked, and give some examples contrasting the usual postprocessing schemes with new ones from modern coding theory. A good understanding of its implications is very important for the design of modern QKD devices.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Martinez-Mateo J,Elkouss D,Martin Vdoi
10.1038/srep01576subject
Has Abstractpub_date
2013-01-01 00:00:00pages
1576issn
2045-2322pii
srep01576journal_volume
3pub_type
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