Tightening the eavesdropping accessible information for continuous variable quantum key distribution protocols that involve nonmaximally entanglement

Becir, A. and Wahiddin, Mohamed Ridza (2012) Tightening the eavesdropping accessible information for continuous variable quantum key distribution protocols that involve nonmaximally entanglement. International Journal of Modern Physics B, 26 (16). pp. 1-15. ISSN 0217-9792 ; 1793-6578

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Abstract

In this paper, we derive tight bounds for the eavesdropping attacks on continuous variable quantum key distribution (CV-QKD) protocol that involves nonmaximally entangled states. We show that deriving bounds on the eavesdropper’s accessible information based on the Heisenberg uncertainty yields upper bounds, but those bounds are not tight. For this reason, we follow different techniques to derive the desired tight bounds. The new bounds are tight for all CV-QKD protocols that involve two-mode entangled state. Our derivations are applied to direct and reverse reconciliation schemes of protocol implementation, respectively.

Item Type:	Article (Journal)
Additional Information:	3760/28136
Subjects:	Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Information and Communication Technology > Department of Computer Science Kulliyyah of Information and Communication Technology > Department of Computer Science
Depositing User:	Professor Dr Mohamed Ridza Wahiddin
Date Deposited:	08 Jan 2013 07:43
Last Modified:	30 Jun 2020 15:40
URI:	http://irep.iium.edu.my/id/eprint/28136

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