Enhancing practical security of quantum key distribution with a few decoy states

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

Quantum key distribution establishes a secret string of bits between two distant parties. Of concern in weak laser pulse schemes is the especially strong photon number splitting attack by an eavesdropper, but the decoy state method can detect this attack with current technology, yielding a high rate of secret bits. In this Letter, we develop rigorous security statements in the case of finite statistics with only a few decoy states, and we present the results of simulations of an experimental setup of a decoy state protocol that can be simply realized with current technology.
4 pages, 5 figures, RevTex 4

Keywords

Quantum Physics

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/92732

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/quant-ph/0503002
 http://arxiv.org/abs/quant-ph/0503002

Collections

arXiv