Estimation of decoy state parameters for practical QKD

Ali, Sellami and Mahmoud, Omer and Saeed, Rashid Abdelhaleem (2011) Estimation of decoy state parameters for practical QKD. Australian Journal of Basic and Applied Sciences,, 5 (6). pp. 430-439. ISSN 1991-8178

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Abstract

We have presented a method to estimate parameters of the decoy state method based on one decoy state protocol for both BB84 and SARG04. This method has given different lower bound of the fraction of single-photon counts (y1), the fraction of two-photon counts (y2), the upper bound QBER of single-photon pulses (e1), the upper bound QBER of two photon pulses (e2), and the lower bound of key generation rate for both BB84 and SARG04. The numerical simulation has shown that the fiber based QKD and free space QKD systems using the proposed method for BB84 are able to achieve both a higher secret key rate and greater secure distance than that of SARG04. Also, it is shown that bidirectional ground to satellite and inter-satellite communications are possible with our protocol.

Item Type:	Article (Journal)
Additional Information:	6576/2317
Uncontrolled Keywords:	Quantum cryptography, quantum key distribution, decoy state protocol and optical communications.
Subjects:	Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering Kulliyyah of Engineering > Department of Science
Depositing User:	Dr Ali Sellami
Date Deposited:	17 Sep 2011 14:31
Last Modified:	27 Jun 2013 14:59
URI:	http://irep.iium.edu.my/id/eprint/2317

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