Implementation of Two Way Free Space Quantum Key Distribution

M. F. Abdul Khir; M. N. Mohd Zain; Suryadi; S. Saharudin; S. Shaari

Implementation of Two Way Free Space Quantum Key Distribution

Quantum Physics 2012-03-02 v1

Authors: M. F. Abdul Khir , M. N. Mohd Zain , Suryadi , S. Saharudin , S. Shaari

Abstract

We report an implementation over free space medium of a two way four states quantum key distribution (QKD) protocol namely the LM05. The fully automated setup demonstrated a secure key generation rate of 3.54 kbits per second and quantum bit error rate (QBER) of 3.34% at mean photon number ({\mu}) = 0.15. The maximum tolerable channel loss for secure key generation considering Photon Number Splitting (PNS) attack, was 5.68 [dB]. The result successfully demonstrated the feasibility of a two way QKD protocol implementation over free space medium.

Keywords

quantum key distribution

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@article{arxiv.1108.3411,
  title  = {Implementation of Two Way Free Space Quantum Key Distribution},
  author = {M. F. Abdul Khir and M. N. Mohd Zain and Suryadi and S. Saharudin and S. Shaari},
  journal= {arXiv preprint arXiv:1108.3411},
  year   = {2012}
}

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To appear in the April 2012 issue of Optical Engineering (Vol. 51, No. 04)

Implementation of Two Way Free Space Quantum Key Distribution

Abstract

Keywords

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