High Efficient Secret Key Distillation for Long Distance Continuous Variable Quantum Key Distribution

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

The continuous variable quantum key distribution is expected to provide high secret key rate without single photon source and detector, but the lack of the secure and effective key distillation method makes it unpractical. Here, we present a secure single-bit-reverse-reconciliation protocol combined with secret information concentration and post-selection, which can distill the secret key with high efficiency and low computational complexity. The simulation results show that this protocol can provide high secret key rate even when the transmission fiber is longer than 150km, which may make the continuous variable scheme to outvie the single photon one.
4 pages 2 figures. Language revised, title revised, numerical simulation optimized

Keywords

Quantum Physics

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/110590

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/quant-ph/0603068
 http://arxiv.org/abs/quant-ph/0603068

Collections

arXiv