9 April 2012 Implementation of two-way free space quantum key distribution
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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.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE)
Mohd Fared Abdul Khir, Mohd Fared Abdul Khir, Mazainun A. Mohd Zain, Mazainun A. Mohd Zain, Suhairi Saharudin, Suhairi Saharudin, Suryadi Soekardjo, Suryadi Soekardjo, Sahbudin Bin Haji Shaari, Sahbudin Bin Haji Shaari, } "Implementation of two-way free space quantum key distribution," Optical Engineering 51(4), 045006 (9 April 2012). https://doi.org/10.1117/1.OE.51.4.045006 . Submission:
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