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Optical Engineering

Implementation of two-way free space quantum key distribution
Author(s): Mohd Fared Abdul Khir; Mazainun A. Mohd Zain; Suhairi Saharudin; Suryadi Soekardjo; Sahbudin Bin Haji Shaari
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Paper Abstract

We report an implementation of a two-way, four-state quantum key distribution (QKD) protocol (namely, the LM05 protocol) over a free space medium. A stable quantum bit error rate of 3.34% and maximum tolerable channel loss for secure key generation of 5.68 dB in the absence of a photon number splitting attack were recorded. The result strongly indicates the feasibility of a two-way QKD protocol implementation over a free space medium.

Paper Details

Date Published: 9 April 2012
PDF: 8 pages
Opt. Eng. 51(4) 045006 doi: 10.1117/1.OE.51.4.045006
Published in: Optical Engineering Volume 51, Issue 4
Show Author Affiliations
Mohd Fared Abdul Khir, MIMOS Berhad (Malaysia)
Mazainun A. Mohd Zain, MIMOS Berhad (Malaysia)
Suhairi Saharudin
Suryadi Soekardjo, International Islamic Univ. Malaysia (Malaysia)
Sahbudin Bin Haji Shaari, Univ. Kebangsaan Malaysia (Malaysia)

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